gnezim
0a5ab058a6
- Angular 12 application with PrimeNG components - 5 existing Cypress e2e test suites - SCSS styling with BEM naming convention - i18n support (10 languages) - Leaflet map integration - Complete component hierarchy and routing structure This baseline will be used for Angular → React migration.
39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
'use strict';
|
|
|
|
var $TypeError = require('es-errors/type');
|
|
|
|
var substring = require('./substring');
|
|
|
|
var isInteger = require('../helpers/isInteger');
|
|
|
|
// https://262.ecma-international.org/16.0/#sec-stringlastindexof
|
|
|
|
module.exports = function StringLastIndexOf(string, searchValue, fromIndex) {
|
|
if (typeof string !== 'string') {
|
|
throw new $TypeError('Assertion failed: `string` must be a string');
|
|
}
|
|
if (typeof searchValue !== 'string') {
|
|
throw new $TypeError('Assertion failed: `searchValue` must be a string');
|
|
}
|
|
if (!isInteger(fromIndex) || fromIndex < 0) {
|
|
throw new $TypeError('Assertion failed: `fromIndex` must be a non-negative integer');
|
|
}
|
|
|
|
var len = string.length; // step 1
|
|
|
|
var searchLen = searchValue.length; // step 2
|
|
|
|
if (!((fromIndex + searchLen) <= len)) {
|
|
throw new $TypeError('Assertion failed: fromIndex + searchLen ≤ len'); // step 3
|
|
}
|
|
|
|
for (var i = fromIndex; i >= 0; i--) { // step 4
|
|
var candidate = substring(string, i, i + searchLen); // step 4.a
|
|
if (candidate === searchValue) {
|
|
return i; // step 4.b
|
|
}
|
|
}
|
|
|
|
return 'NOT-FOUND'; // step 5
|
|
};
|