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implementation.js
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/
implementation.js
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'use strict';
var RequireObjectCoercible = require('es-object-atoms/RequireObjectCoercible');
var ToString = require('es-abstract/2024/ToString');
var IsRegExp = require('es-abstract/2024/IsRegExp');
var ToIntegerOrInfinity = require('es-abstract/2024/ToIntegerOrInfinity');
var callBound = require('call-bind/callBound');
var StringCharCodeAt = callBound('String.prototype.charCodeAt');
var max = Math.max;
var min = Math.min;
module.exports = function endsWith(searchString) {
var O = RequireObjectCoercible(this);
var S = ToString(O);
if (IsRegExp(searchString)) {
throw new TypeError('Argument to String.prototype.endsWith cannot be a RegExp');
}
var searchStr = ToString(searchString);
var len = S.length;
var searchLength = searchStr.length;
var endPosition = arguments.length > 1 ? arguments[1] : undefined;
var pos = endPosition === undefined ? len : ToIntegerOrInfinity(endPosition);
var end = min(max(pos, 0), len);
var start = end - searchLength;
if (start < 0) {
return false;
}
var index = -1;
while (++index < searchLength) { // eslint-disable-line no-plusplus
if (StringCharCodeAt(S, start + index) !== StringCharCodeAt(searchStr, index)) {
return false;
}
}
return true;
};