17 lines
524 B
JavaScript
17 lines
524 B
JavaScript
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// By Mozilla Contributors licensed under CC-BY-SA 2.5 (http://creativecommons.org/licenses/by-sa/2.5/)
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes#Polyfill
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if (!String.prototype.includes) {
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String.prototype.includes = function(search, start) {
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'use strict';
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if (typeof start !== 'number') {
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start = 0;
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}
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if (start + search.length > this.length) {
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return false;
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} else {
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return this.indexOf(search, start) !== -1;
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}
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};
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}
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