chore: configure eqeqeq lint rule

.eslintrc.js

@@ -28,6 +28,7 @@ module.exports = defineConfig({
   rules: {
     // We may want to use this in the future
     'no-useless-escape': 'off',
+    eqeqeq: ['error', 'always', { null: 'ignore' }],
 
     '@typescript-eslint/ban-ts-comment': 'warn',
     '@typescript-eslint/consistent-type-imports': 'error',

src/datatype.ts

@@ -182,7 +182,7 @@ export class Datatype {
     const RFC4122_TEMPLATE = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx';
     const replacePlaceholders = (placeholder) => {
       const random = this.faker.datatype.number({ min: 0, max: 15 });
-      const value = placeholder == 'x' ? random : (random & 0x3) | 0x8;
+      const value = placeholder === 'x' ? random : (random & 0x3) | 0x8;
       return value.toString(16);
     };
     return RFC4122_TEMPLATE.replace(/[xy]/g, replacePlaceholders);

src/date.ts

@@ -112,7 +112,7 @@ export class _Date {
    * // [ 2023-05-02T16:00:00.000Z, 2026-09-01T08:00:00.000Z ]
    */
   betweens(from: string, to: string, num?: number): Date[] {
-    if (typeof num == 'undefined') {
+    if (typeof num === 'undefined') {
       num = 3;
     }
     const newDates: Date[] = [];

src/finance.ts

@@ -91,7 +91,7 @@ export class Finance {
   mask(length?: number, parens?: boolean, ellipsis?: boolean): string {
     // set defaults
     length =
-      length == 0 || !length || typeof length == 'undefined' ? 4 : length;
+      length === 0 || !length || typeof length === 'undefined' ? 4 : length;
     parens = parens == null ? true : parens;
     ellipsis = ellipsis == null ? true : ellipsis;
 
@@ -352,9 +352,9 @@ export class Finance {
       let c = bban.count;
       count += bban.count;
       while (c > 0) {
-        if (bban.type == 'a') {
+        if (bban.type === 'a') {
           s += this.faker.random.arrayElement(this.ibanLib.alpha);
-        } else if (bban.type == 'c') {
+        } else if (bban.type === 'c') {
           if (this.faker.datatype.number(100) < 80) {
             s += this.faker.datatype.number(9);
           } else {

src/helpers.ts

@@ -178,9 +178,9 @@ export class Helpers {
   replaceSymbolWithNumber(string: string = '', symbol: string = '#'): string {
     let str = '';
     for (let i = 0; i < string.length; i++) {
-      if (string.charAt(i) == symbol) {
+      if (string.charAt(i) === symbol) {
         str += this.faker.datatype.number(9);
-      } else if (string.charAt(i) == '!') {
+      } else if (string.charAt(i) === '!') {
         str += this.faker.datatype.number({ min: 2, max: 9 });
       } else {
         str += string.charAt(i);
@@ -237,11 +237,11 @@ export class Helpers {
     let str = '';
 
     for (let i = 0; i < string.length; i++) {
-      if (string.charAt(i) == '#') {
+      if (string.charAt(i) === '#') {
         str += this.faker.datatype.number(9);
-      } else if (string.charAt(i) == '?') {
+      } else if (string.charAt(i) === '?') {
         str += this.faker.random.arrayElement(alpha);
-      } else if (string.charAt(i) == '*') {
+      } else if (string.charAt(i) === '*') {
         str += this.faker.datatype.boolean()
           ? this.faker.random.arrayElement(alpha)
           : this.faker.datatype.number(9);

src/internet.ts

@@ -336,7 +336,7 @@ export class Internet {
 
     for (i = 0; i < 12; i++) {
       mac += this.faker.datatype.number(15).toString(16);
-      if (i % 2 == 1 && i != 11) {
+      if (i % 2 === 1 && i !== 11) {
         mac += validSep;
       }
     }

src/lorem.ts

@@ -50,7 +50,7 @@ export class Lorem {
    * faker.lorem.words(10) // 'debitis consectetur voluptatem non doloremque ipsum autem totam eum ratione'
    */
   words(num?: number): string {
-    if (typeof num == 'undefined') {
+    if (typeof num === 'undefined') {
       num = 3;
     }
     const words: string[] = [];
@@ -72,7 +72,7 @@ export class Lorem {
    */
   // TODO @Shinigami92 2022-01-11: `range` is not in use
   sentence(wordCount?: number, range?: number): string {
-    if (typeof wordCount == 'undefined') {
+    if (typeof wordCount === 'undefined') {
       wordCount = this.faker.datatype.number({ min: 3, max: 10 });
     }
     // if (typeof range == 'undefined') { range = 7; }

src/mersenne.ts

@@ -46,7 +46,7 @@ export class Mersenne {
    * @throws If the seed is not a `number`.
    */
   seed(S: number): void {
-    if (typeof S != 'number') {
+    if (typeof S !== 'number') {
       throw new Error('seed(S) must take numeric argument; is ' + typeof S);
     }
 
@@ -60,7 +60,7 @@ export class Mersenne {
    * @throws If the seed is not a `number[]`.
    */
   seed_array(A: number[]): void {
-    if (typeof A != 'object') {
+    if (typeof A !== 'object') {
       throw new Error(
         'seed_array(A) must take array of numbers; is ' + typeof A
       );

src/vendor/mersenne.ts

@@ -237,7 +237,7 @@ export default class MersenneTwister19937 {
       //c//int kk;
       let kk: number;
 
-      if (this.mti == this.N + 1) {
+      if (this.mti === this.N + 1) {
         /* if init_genrand() has not been called, */
         //c//init_genrand(5489); /* a default initial seed is used */
         this.initGenrand(5489);

src/word.ts

@@ -24,7 +24,7 @@ export class Word {
     let wordList = this.faker.definitions.word.adjective;
     if (length) {
       wordList = this.faker.definitions.word.adjective.filter(
-        (word) => word.length == length
+        (word) => word.length === length
       );
     }
 
@@ -46,7 +46,7 @@ export class Word {
     let wordList = this.faker.definitions.word.adverb;
     if (length) {
       wordList = this.faker.definitions.word.adverb.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 
@@ -68,7 +68,7 @@ export class Word {
     let wordList = this.faker.definitions.word.conjunction;
     if (length) {
       wordList = this.faker.definitions.word.conjunction.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 
@@ -90,7 +90,7 @@ export class Word {
     let wordList = this.faker.definitions.word.interjection;
     if (length) {
       wordList = this.faker.definitions.word.interjection.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 
@@ -112,7 +112,7 @@ export class Word {
     let wordList = this.faker.definitions.word.noun;
     if (length) {
       wordList = this.faker.definitions.word.noun.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 
@@ -134,7 +134,7 @@ export class Word {
     let wordList = this.faker.definitions.word.preposition;
     if (length) {
       wordList = this.faker.definitions.word.preposition.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 
@@ -156,7 +156,7 @@ export class Word {
     let wordList = this.faker.definitions.word.verb;
     if (length) {
       wordList = this.faker.definitions.word.verb.filter(
-        (word: string) => word.length == length
+        (word: string) => word.length === length
       );
     }
 

test/address.spec.ts

@@ -571,7 +571,7 @@ describe('address', () => {
             latFloat1 = parseFloat(faker.address.latitude());
             lonFloat1 = parseFloat(faker.address.longitude());
             const radius = Math.random() * 99 + 1; // range of [1, 100)
-            isMetric = Math.round(Math.random()) == 1;
+            isMetric = Math.round(Math.random()) === 1;
 
             const coordinate = faker.address.nearbyGPSCoordinate(
               [latFloat1, lonFloat1],

test/finance.spec.ts

@@ -187,7 +187,7 @@ describe('finance', () => {
           let expected = faker.datatype.number(20);
 
           expected =
-            expected === 0 || !expected || typeof expected == 'undefined'
+            expected === 0 || !expected || typeof expected === 'undefined'
               ? 4
               : expected;