| 1 | if (!String.prototype.endsWith) {
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| 2 | Object.defineProperty(String.prototype, 'endsWith', {
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| 3 | enumerable: false,
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| 4 | configurable: false,
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| 5 | writable: false,
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| 6 | value: function (searchString, position) {
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| 7 | position = position || this.length;
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| 8 | position = position - searchString.length;
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| 9 | var lastIndex = this.lastIndexOf(searchString);
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| 10 | return lastIndex !== -1 && lastIndex === position;
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| 11 | }
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| 12 | });
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| 13 | }
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| 14 |
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| 15 | if (!String.prototype.startsWith) {
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| 16 | Object.defineProperty(String.prototype, 'startsWith', {
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| 17 | enumerable: false,
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| 18 | configurable: false,
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| 19 | writable: false,
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| 20 | value: function (searchString, position) {
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| 21 | position = position || 0;
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| 22 | return this.indexOf(searchString, position) === position;
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| 23 | }
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| 24 | });
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| 25 | }
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| 26 |
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| 27 | if (!String.prototype.contains ) {
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| 28 | String.prototype.contains = function() {
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| 29 | return this.indexOf(arguments) !== -1;
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| 30 | };
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| 31 | } |
| \ | No newline at end of file |