Enable eslint for util.ts (#3887)

* Enable eslint for util.ts

* Drop babel (since eslint parser was replaced by typescript-parser and it doesn't seem to be used anywhere)

* Apply "plugin:@typescript-eslint/recommended"

* Minor

* Remove comment for generated file (Keep the first comment only)

.dockerignore

@@ -30,7 +30,6 @@ SECURITY.md
 tsconfig.json
 .env
 /tmp
-/babel.config.js
 /ecosystem.config.js
 /extra/healthcheck.exe
 /extra/healthcheck

.eslintrc.js

@@ -19,12 +19,13 @@ module.exports = {
     ],
     parser: "vue-eslint-parser",
     parserOptions: {
-        parser: "@babel/eslint-parser",
+        parser: "@typescript-eslint/parser",
         sourceType: "module",
         requireConfigFile: false,
     },
     plugins: [
-        "jsdoc"
+        "jsdoc",
+        "@typescript-eslint",
     ],
     rules: {
         "yoda": "error",
@@ -163,6 +164,21 @@ module.exports = {
                 context: true,
                 jestPuppeteer: true,
             },
+        },
+
+        // Override for TypeScript
+        {
+            "files": [
+                "**/*.ts",
+            ],
+            extends: [
+                "plugin:@typescript-eslint/recommended",
+            ],
+            "rules": {
+                "jsdoc/require-returns-type": "off",
+                "jsdoc/require-param-type": "off",
+                "@typescript-eslint/no-explicit-any": "off",
+            }
         }
     ]
 };

babel.config.js

@@ -1,7 +0,0 @@
-const config = {};
-
-if (process.env.TEST_FRONTEND) {
-    config.presets = [ "@babel/preset-env" ];
-}
-
-module.exports = config;

package.json

@@ -144,14 +144,14 @@
     },
     "devDependencies": {
         "@actions/github": "~5.0.1",
-        "@babel/eslint-parser": "^7.22.7",
-        "@babel/preset-env": "^7.15.8",
         "@fortawesome/fontawesome-svg-core": "~1.2.36",
         "@fortawesome/free-regular-svg-icons": "~5.15.4",
         "@fortawesome/free-solid-svg-icons": "~5.15.4",
         "@fortawesome/vue-fontawesome": "~3.0.0-5",
         "@popperjs/core": "~2.10.2",
         "@types/bootstrap": "~5.1.9",
+        "@typescript-eslint/eslint-plugin": "^6.7.5",
+        "@typescript-eslint/parser": "^6.7.5",
         "@vitejs/plugin-vue": "~4.2.3",
         "@vue/compiler-sfc": "~3.3.4",
         "@vuepic/vue-datepicker": "~3.4.8",

src/util.js

@@ -1,4 +1,5 @@
 "use strict";
+/*!
 // Common Util for frontend and backend
 //
 // DOT NOT MODIFY util.js!
@@ -6,6 +7,7 @@
 //
 // Backend uses the compiled file util.js
 // Frontend uses util.ts
+*/
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.localToUTC = exports.utcToLocal = exports.utcToISODateTime = exports.isoToUTCDateTime = exports.parseTimeFromTimeObject = exports.parseTimeObject = exports.getMaintenanceRelativeURL = exports.getMonitorRelativeURL = exports.genSecret = exports.getCryptoRandomInt = exports.getRandomInt = exports.getRandomArbitrary = exports.TimeLogger = exports.polyfill = exports.log = exports.debug = exports.ucfirst = exports.sleep = exports.flipStatus = exports.MIN_INTERVAL_SECOND = exports.MAX_INTERVAL_SECOND = exports.SQL_DATETIME_FORMAT_WITHOUT_SECOND = exports.SQL_DATETIME_FORMAT = exports.SQL_DATE_FORMAT = exports.STATUS_PAGE_MAINTENANCE = exports.STATUS_PAGE_PARTIAL_DOWN = exports.STATUS_PAGE_ALL_UP = exports.STATUS_PAGE_ALL_DOWN = exports.MAINTENANCE = exports.PENDING = exports.UP = exports.DOWN = exports.appName = exports.isDev = void 0;
 const dayjs = require("dayjs");
@@ -22,9 +24,8 @@ exports.STATUS_PAGE_MAINTENANCE = 3;
 exports.SQL_DATE_FORMAT = "YYYY-MM-DD";
 exports.SQL_DATETIME_FORMAT = "YYYY-MM-DD HH:mm:ss";
 exports.SQL_DATETIME_FORMAT_WITHOUT_SECOND = "YYYY-MM-DD HH:mm";
-exports.MAX_INTERVAL_SECOND = 2073600; // 24 days
+exports.MAX_INTERVAL_SECOND = 2073600;
-exports.MIN_INTERVAL_SECOND = 20; // 20 seconds
+exports.MIN_INTERVAL_SECOND = 20;
-/** Flip the status of s */
 function flipStatus(s) {
     if (s === exports.UP) {
         return exports.DOWN;
@@ -35,18 +36,10 @@ function flipStatus(s) {
     return s;
 }
 exports.flipStatus = flipStatus;
-/**
- * Delays for specified number of seconds
- * @param ms Number of milliseconds to sleep for
- */
 function sleep(ms) {
     return new Promise(resolve => setTimeout(resolve, ms));
 }
 exports.sleep = sleep;
-/**
- * PHP's ucfirst
- * @param str
- */
 function ucfirst(str) {
     if (!str) {
         return str;
@@ -55,26 +48,12 @@ function ucfirst(str) {
     return firstLetter.toUpperCase() + str.substr(1);
 }
 exports.ucfirst = ucfirst;
-/**
- * @deprecated Use log.debug
- * @since https://github.com/louislam/uptime-kuma/pull/910
- * @param msg
- */
 function debug(msg) {
     exports.log.log("", msg, "debug");
 }
 exports.debug = debug;
 class Logger {
     constructor() {
-        /**
-         * UPTIME_KUMA_HIDE_LOG=debug_monitor,info_monitor
-         *
-         * Example:
-         *  [
-         *     "debug_monitor",          // Hide all logs that level is debug and the module is monitor
-         *     "info_monitor",
-         *  ]
-         */
         this.hideLog = {
             info: [],
             warn: [],
@@ -82,10 +61,9 @@ class Logger {
             debug: [],
         };
         if (typeof process !== "undefined" && process.env.UPTIME_KUMA_HIDE_LOG) {
-            let list = process.env.UPTIME_KUMA_HIDE_LOG.split(",").map(v => v.toLowerCase());
+            const list = process.env.UPTIME_KUMA_HIDE_LOG.split(",").map(v => v.toLowerCase());
-            for (let pair of list) {
+            for (const pair of list) {
-                // split first "_" only
+                const values = pair.split(/_(.*)/s);
-                let values = pair.split(/_(.*)/s);
                 if (values.length >= 2) {
                     this.hideLog[values[0]].push(values[1]);
                 }
@@ -94,12 +72,6 @@ class Logger {
             this.debug("server", this.hideLog);
         }
     }
-    /**
-     * Write a message to the log
-     * @param module The module the log comes from
-     * @param msg Message to write
-     * @param level Log level. One of INFO, WARN, ERROR, DEBUG or can be customized.
-     */
     log(module, msg, level) {
         if (this.hideLog[level] && this.hideLog[level].includes(module.toLowerCase())) {
             return;
@@ -132,44 +104,18 @@ class Logger {
             console.log(formattedMessage);
         }
     }
-    /**
-     * Log an INFO message
-     * @param module Module log comes from
-     * @param msg Message to write
-     */
     info(module, msg) {
         this.log(module, msg, "info");
     }
-    /**
-     * Log a WARN message
-     * @param module Module log comes from
-     * @param msg Message to write
-     */
     warn(module, msg) {
         this.log(module, msg, "warn");
     }
-    /**
-     * Log an ERROR message
-     * @param module Module log comes from
-     * @param msg Message to write
-     */
     error(module, msg) {
         this.log(module, msg, "error");
     }
-    /**
-     * Log a DEBUG message
-     * @param module Module log comes from
-     * @param msg Message to write
-     */
     debug(module, msg) {
         this.log(module, msg, "debug");
     }
-    /**
-     * Log an exeption as an ERROR
-     * @param module Module log comes from
-     * @param exception The exeption to include
-     * @param msg The message to write
-     */
     exception(module, exception, msg) {
         let finalMessage = exception;
         if (msg) {
@@ -179,20 +125,12 @@ class Logger {
     }
 }
 exports.log = new Logger();
-/**
- * String.prototype.replaceAll() polyfill
- * https://gomakethings.com/how-to-replace-a-section-of-a-string-with-another-one-with-vanilla-js/
- * @author Chris Ferdinandi
- * @license MIT
- */
 function polyfill() {
     if (!String.prototype.replaceAll) {
         String.prototype.replaceAll = function (str, newStr) {
-            // If a regex pattern
             if (Object.prototype.toString.call(str).toLowerCase() === "[object regexp]") {
                 return this.replace(str, newStr);
             }
-            // If a string
             return this.replace(new RegExp(str, "g"), newStr);
         };
     }
@@ -202,10 +140,6 @@ class TimeLogger {
     constructor() {
         this.startTime = dayjs().valueOf();
     }
-    /**
-     * Output time since start of monitor
-     * @param name Name of monitor
-     */
     print(name) {
         if (exports.isDev && process.env.TIMELOGGER === "1") {
             console.log(name + ": " + (dayjs().valueOf() - this.startTime) + "ms");
@@ -213,66 +147,42 @@ class TimeLogger {
     }
 }
 exports.TimeLogger = TimeLogger;
-/**
- * Returns a random number between min (inclusive) and max (exclusive)
- */
 function getRandomArbitrary(min, max) {
     return Math.random() * (max - min) + min;
 }
 exports.getRandomArbitrary = getRandomArbitrary;
-/**
- * From: https://stackoverflow.com/questions/1527803/generating-random-whole-numbers-in-javascript-in-a-specific-range
- *
- * Returns a random integer between min (inclusive) and max (inclusive).
- * The value is no lower than min (or the next integer greater than min
- * if min isn't an integer) and no greater than max (or the next integer
- * lower than max if max isn't an integer).
- * Using Math.round() will give you a non-uniform distribution!
- */
 function getRandomInt(min, max) {
     min = Math.ceil(min);
     max = Math.floor(max);
     return Math.floor(Math.random() * (max - min + 1)) + min;
 }
 exports.getRandomInt = getRandomInt;
-/**
+const getRandomBytes = ((typeof window !== "undefined" && window.crypto)
- * Returns either the NodeJS crypto.randomBytes() function or its
- * browser equivalent implemented via window.crypto.getRandomValues()
- */
-let getRandomBytes = ((typeof window !== 'undefined' && window.crypto)
-    // Browsers
     ? function () {
         return (numBytes) => {
-            let randomBytes = new Uint8Array(numBytes);
+            const randomBytes = new Uint8Array(numBytes);
             for (let i = 0; i < numBytes; i += 65536) {
                 window.crypto.getRandomValues(randomBytes.subarray(i, i + Math.min(numBytes - i, 65536)));
             }
             return randomBytes;
         };
     }
-    // Node
     : function () {
         return require("crypto").randomBytes;
     })();
-/**
- * Get a random integer suitable for use in cryptography between upper
- * and lower bounds.
- * @param min Minimum value of integer
- * @param max Maximum value of integer
- * @returns Cryptographically suitable random integer
- */
 function getCryptoRandomInt(min, max) {
-    // synchronous version of: https://github.com/joepie91/node-random-number-csprng
     const range = max - min;
-    if (range >= Math.pow(2, 32))
+    if (range >= Math.pow(2, 32)) {
         console.log("Warning! Range is too large.");
+    }
     let tmpRange = range;
     let bitsNeeded = 0;
     let bytesNeeded = 0;
     let mask = 1;
     while (tmpRange > 0) {
-        if (bitsNeeded % 8 === 0)
+        if (bitsNeeded % 8 === 0) {
             bytesNeeded += 1;
+        }
         bitsNeeded += 1;
         mask = mask << 1 | 1;
         tmpRange = tmpRange >>> 1;
@@ -291,11 +201,6 @@ function getCryptoRandomInt(min, max) {
     }
 }
 exports.getCryptoRandomInt = getCryptoRandomInt;
-/**
- * Generate a random alphanumeric string of fixed length
- * @param length Length of string to generate
- * @returns string
- */
 function genSecret(length = 64) {
     let secret = "";
     const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
@@ -306,29 +211,14 @@ function genSecret(length = 64) {
     return secret;
 }
 exports.genSecret = genSecret;
-/**
- * Get the path of a monitor
- * @param id ID of monitor
- * @returns Formatted relative path
- */
 function getMonitorRelativeURL(id) {
     return "/dashboard/" + id;
 }
 exports.getMonitorRelativeURL = getMonitorRelativeURL;
-/**
- * Get relative path for maintenance
- * @param id ID of maintenance
- * @returns Formatted relative path
- */
 function getMaintenanceRelativeURL(id) {
     return "/maintenance/" + id;
 }
 exports.getMaintenanceRelativeURL = getMaintenanceRelativeURL;
-/**
- * Parse to Time Object that used in VueDatePicker
- * @param {string} time E.g. 12:00
- * @returns object
- */
 function parseTimeObject(time) {
     if (!time) {
         return {
@@ -336,11 +226,11 @@ function parseTimeObject(time) {
             minutes: 0,
         };
     }
-    let array = time.split(":");
+    const array = time.split(":");
     if (array.length < 2) {
         throw new Error("parseVueDatePickerTimeFormat: Invalid Time");
     }
-    let obj = {
+    const obj = {
         hours: parseInt(array[0]),
         minutes: parseInt(array[1]),
         seconds: 0,
@@ -351,9 +241,6 @@ function parseTimeObject(time) {
     return obj;
 }
 exports.parseTimeObject = parseTimeObject;
-/**
- * @returns string e.g. 12:00
- */
 function parseTimeFromTimeObject(obj) {
     if (!obj) {
         return obj;
@@ -366,35 +253,18 @@ function parseTimeFromTimeObject(obj) {
     return result;
 }
 exports.parseTimeFromTimeObject = parseTimeFromTimeObject;
-/**
- * Convert ISO date to UTC
- * @param input Date
- * @returns ISO Date time
- */
 function isoToUTCDateTime(input) {
     return dayjs(input).utc().format(exports.SQL_DATETIME_FORMAT);
 }
 exports.isoToUTCDateTime = isoToUTCDateTime;
-/**
- * @param input
- */
 function utcToISODateTime(input) {
     return dayjs.utc(input).toISOString();
 }
 exports.utcToISODateTime = utcToISODateTime;
-/**
- * For SQL_DATETIME_FORMAT
- */
 function utcToLocal(input, format = exports.SQL_DATETIME_FORMAT) {
     return dayjs.utc(input).local().format(format);
 }
 exports.utcToLocal = utcToLocal;
-/**
- * Convert local datetime to UTC
- * @param input Local date
- * @param format Format to return
- * @returns Date in requested format
- */
 function localToUTC(input, format = exports.SQL_DATETIME_FORMAT) {
     return dayjs(input).utc().format(format);
 }

src/util.ts

@@ -1,3 +1,4 @@
+/*!
 // Common Util for frontend and backend
 //
 // DOT NOT MODIFY util.js!
@@ -5,9 +6,14 @@
 //
 // Backend uses the compiled file util.js
 // Frontend uses util.ts
+*/
 
-import * as dayjs  from "dayjs";
+import * as dayjs from "dayjs";
+
+// For loading dayjs plugins, don't remove event though it is not used in this file
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 import * as timezone from "dayjs/plugin/timezone";
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 import * as utc from "dayjs/plugin/utc";
 
 export const isDev = process.env.NODE_ENV === "development";
@@ -29,7 +35,10 @@ export const SQL_DATETIME_FORMAT_WITHOUT_SECOND = "YYYY-MM-DD HH:mm";
 export const MAX_INTERVAL_SECOND = 2073600; // 24 days
 export const MIN_INTERVAL_SECOND = 20; // 20 seconds
 
-/** Flip the status of s */
+/**
+ * Flip the status of s
+ * @param s
+ */
 export function flipStatus(s: number) {
     if (s === UP) {
         return DOWN;
@@ -64,11 +73,10 @@ export function ucfirst(str: string) {
 }
 
 /**
- * @deprecated Use log.debug
+ * @deprecated Use log.debug (https://github.com/louislam/uptime-kuma/pull/910)
- * @since https://github.com/louislam/uptime-kuma/pull/910
  * @param msg
  */
-export function debug(msg: any) {
+export function debug(msg: unknown) {
     log.log("", msg, "debug");
 }
 
@@ -83,20 +91,23 @@ class Logger {
      *     "info_monitor",
      *  ]
      */
-    hideLog : any = {
+    hideLog : Record<string, string[]> = {
         info: [],
         warn: [],
         error: [],
         debug: [],
     };
 
+    /**
+     *
+     */
     constructor() {
         if (typeof process !== "undefined" && process.env.UPTIME_KUMA_HIDE_LOG) {
-            let list = process.env.UPTIME_KUMA_HIDE_LOG.split(",").map(v => v.toLowerCase());
+            const list = process.env.UPTIME_KUMA_HIDE_LOG.split(",").map(v => v.toLowerCase());
 
-            for (let pair of list) {
+            for (const pair of list) {
                 // split first "_" only
-                let values = pair.split(/_(.*)/s);
+                const values = pair.split(/_(.*)/s);
 
                 if (values.length >= 2) {
                     this.hideLog[values[0]].push(values[1]);
@@ -114,7 +125,7 @@ class Logger {
      * @param msg Message to write
      * @param level Log level. One of INFO, WARN, ERROR, DEBUG or can be customized.
      */
-    log(module: string, msg: any, level: string) {
+    log(module: string, msg: unknown, level: string) {
         if (this.hideLog[level] && this.hideLog[level].includes(module.toLowerCase())) {
             return;
         }
@@ -150,7 +161,7 @@ class Logger {
      * @param module Module log comes from
      * @param msg Message to write
      */
-    info(module: string, msg: any) {
+    info(module: string, msg: unknown) {
         this.log(module, msg, "info");
     }
 
@@ -159,7 +170,7 @@ class Logger {
      * @param module Module log comes from
      * @param msg Message to write
      */
-    warn(module: string, msg: any) {
+    warn(module: string, msg: unknown) {
         this.log(module, msg, "warn");
     }
 
@@ -168,8 +179,8 @@ class Logger {
      * @param module Module log comes from
      * @param msg Message to write
      */
-    error(module: string, msg: any) {
+    error(module: string, msg: unknown) {
-       this.log(module, msg, "error");
+        this.log(module, msg, "error");
     }
 
     /**
@@ -177,24 +188,24 @@ class Logger {
      * @param module Module log comes from
      * @param msg Message to write
      */
-    debug(module: string, msg: any) {
+    debug(module: string, msg: unknown) {
-       this.log(module, msg, "debug");
+        this.log(module, msg, "debug");
     }
 
     /**
-     * Log an exeption as an ERROR
+     * Log an exception as an ERROR
      * @param module Module log comes from
-     * @param exception The exeption to include
+     * @param exception The exception to include
      * @param msg The message to write
      */
-    exception(module: string, exception: any, msg: any) {
+    exception(module: string, exception: unknown, msg: unknown) {
-        let finalMessage = exception
+        let finalMessage = exception;
 
         if (msg) {
-            finalMessage = `${msg}: ${exception}`
+            finalMessage = `${msg}: ${exception}`;
         }
 
-        this.log(module, finalMessage , "error");
+        this.log(module, finalMessage, "error");
     }
 }
 
@@ -225,22 +236,28 @@ export function polyfill() {
 export class TimeLogger {
     startTime: number;
 
+    /**
+     *
+     */
     constructor() {
         this.startTime = dayjs().valueOf();
     }
+
     /**
      * Output time since start of monitor
      * @param name Name of monitor
      */
     print(name: string) {
         if (isDev && process.env.TIMELOGGER === "1") {
-            console.log(name + ": " + (dayjs().valueOf() - this.startTime) + "ms")
+            console.log(name + ": " + (dayjs().valueOf() - this.startTime) + "ms");
         }
     }
 }
 
 /**
  * Returns a random number between min (inclusive) and max (exclusive)
+ * @param min
+ * @param max
  */
 export function getRandomArbitrary(min: number, max: number) {
     return Math.random() * (max - min) + min;
@@ -254,6 +271,8 @@ export function getRandomArbitrary(min: number, max: number) {
  * if min isn't an integer) and no greater than max (or the next integer
  * lower than max if max isn't an integer).
  * Using Math.round() will give you a non-uniform distribution!
+ * @param min
+ * @param max
  */
 export function getRandomInt(min: number, max: number) {
     min = Math.ceil(min);
@@ -265,13 +284,13 @@ export function getRandomInt(min: number, max: number) {
  * Returns either the NodeJS crypto.randomBytes() function or its
  * browser equivalent implemented via window.crypto.getRandomValues()
  */
-let getRandomBytes = (
+const getRandomBytes = (
-    (typeof window !== 'undefined' && window.crypto)
+    (typeof window !== "undefined" && window.crypto)
 
         // Browsers
         ? function () {
             return (numBytes: number) => {
-                let randomBytes = new Uint8Array(numBytes);
+                const randomBytes = new Uint8Array(numBytes);
                 for (let i = 0; i < numBytes; i += 65536) {
                     window.crypto.getRandomValues(randomBytes.subarray(i, i + Math.min(numBytes - i, 65536)));
                 }
@@ -279,8 +298,9 @@ let getRandomBytes = (
             };
         }
 
-         // Node
+    // Node
-        : function() {
+        : function () {
+            // eslint-disable-next-line @typescript-eslint/no-var-requires
             return require("crypto").randomBytes;
         }
 )();
@@ -296,35 +316,38 @@ export function getCryptoRandomInt(min: number, max: number):number {
 
     // synchronous version of: https://github.com/joepie91/node-random-number-csprng
 
-    const range = max - min
+    const range = max - min;
-    if (range >= Math.pow(2, 32))
+    if (range >= Math.pow(2, 32)) {
-        console.log("Warning! Range is too large.")
+        console.log("Warning! Range is too large.");
-
-    let tmpRange = range
-    let bitsNeeded = 0
-    let bytesNeeded = 0
-    let mask = 1
-
-    while (tmpRange > 0) {
-        if (bitsNeeded % 8 === 0) bytesNeeded += 1
-        bitsNeeded += 1
-        mask = mask << 1 | 1
-        tmpRange = tmpRange >>> 1
     }
 
-    const randomBytes = getRandomBytes(bytesNeeded)
+    let tmpRange = range;
-    let randomValue = 0
+    let bitsNeeded = 0;
+    let bytesNeeded = 0;
+    let mask = 1;
+
+    while (tmpRange > 0) {
+        if (bitsNeeded % 8 === 0) {
+            bytesNeeded += 1;
+        }
+        bitsNeeded += 1;
+        mask = mask << 1 | 1;
+        tmpRange = tmpRange >>> 1;
+    }
+
+    const randomBytes = getRandomBytes(bytesNeeded);
+    let randomValue = 0;
 
     for (let i = 0; i < bytesNeeded; i++) {
-	    randomValue |= randomBytes[i] << 8 * i
+        randomValue |= randomBytes[i] << 8 * i;
     }
 
     randomValue = randomValue & mask;
 
     if (randomValue <= range) {
-        return min + randomValue
+        return min + randomValue;
     } else {
-        return getCryptoRandomInt(min, max)
+        return getCryptoRandomInt(min, max);
     }
 }
 
@@ -374,17 +397,17 @@ export function parseTimeObject(time: string) {
         };
     }
 
-    let array = time.split(":");
+    const array = time.split(":");
 
     if (array.length < 2) {
         throw new Error("parseVueDatePickerTimeFormat: Invalid Time");
     }
 
-    let obj =  {
+    const obj = {
         hours: parseInt(array[0]),
         minutes: parseInt(array[1]),
         seconds: 0,
-    }
+    };
     if (array.length >= 3) {
         obj.seconds = parseInt(array[2]);
     }
@@ -392,6 +415,7 @@ export function parseTimeObject(time: string) {
 }
 
 /**
+ * @param obj
  * @returns string e.g. 12:00
  */
 export function parseTimeFromTimeObject(obj : any) {
@@ -401,10 +425,10 @@ export function parseTimeFromTimeObject(obj : any) {
 
     let result = "";
 
-    result += obj.hours.toString().padStart(2, "0") + ":" + obj.minutes.toString().padStart(2, "0")
+    result += obj.hours.toString().padStart(2, "0") + ":" + obj.minutes.toString().padStart(2, "0");
 
     if (obj.seconds) {
-        result += ":" +  obj.seconds.toString().padStart(2, "0")
+        result += ":" + obj.seconds.toString().padStart(2, "0");
     }
 
     return result;
@@ -428,8 +452,11 @@ export function utcToISODateTime(input : string) {
 
 /**
  * For SQL_DATETIME_FORMAT
+ * @param input
+ * @param format
+ * @returns A string date of SQL_DATETIME_FORMAT
  */
-export function utcToLocal(input : string, format = SQL_DATETIME_FORMAT) {
+export function utcToLocal(input : string, format = SQL_DATETIME_FORMAT) : string {
     return dayjs.utc(input).local().format(format);
 }
 

tsconfig.json

@@ -8,7 +8,8 @@
             "es2020",
             "DOM"
         ],
-        "removeComments": false,
+        "declaration": false,
+        "removeComments": true,
         "preserveConstEnums": true,
         "sourceMap": false,
         "strict": true