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Last change
on this file since d24f17c was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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File size:
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[d24f17c] | 1 | import isFunction from '../../isFunction';
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| 2 | import isNotUndefined from '../../isNotUndefined';
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| 3 | import repeat from './String.repeat';
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| 4 | var padStartPonyfill = function padStartPonyfill(padString, targetLength, value) {
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| 5 | // eslint-disable-next-line no-bitwise
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| 6 | var finalLength = targetLength >> 0; // truncate if number, or convert non-number to 0;
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| 7 | var finalPadString = String(isNotUndefined(padString) ? padString : ' ');
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| 8 |
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| 9 | // return the original string, if targeted length is less than original strings length
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| 10 | if (value.length >= finalLength) {
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| 11 | return String(value);
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| 12 | }
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| 13 | finalLength -= value.length;
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| 14 | if (finalLength > finalPadString.length) {
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| 15 | var lenghtToPad = finalLength / finalPadString.length;
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| 16 | // append to original to ensure we are longer than needed
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| 17 | finalPadString += isFunction(String.prototype.repeat) ? finalPadString.repeat(lenghtToPad) : repeat(finalPadString, lenghtToPad);
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| 18 | }
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| 19 | return finalPadString.slice(0, finalLength) + String(value);
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| 20 | };
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| 21 | export default padStartPonyfill; |
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