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34 lines
1.1 KiB
34 lines
1.1 KiB
3 years ago
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var baseRepeat = require('./_baseRepeat'),
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baseToString = require('./_baseToString'),
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castSlice = require('./_castSlice'),
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hasUnicode = require('./_hasUnicode'),
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stringSize = require('./_stringSize'),
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stringToArray = require('./_stringToArray');
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/* Built-in method references for those with the same name as other `lodash` methods. */
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var nativeCeil = Math.ceil;
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/**
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* Creates the padding for `string` based on `length`. The `chars` string
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* is truncated if the number of characters exceeds `length`.
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*
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* @private
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* @param {number} length The padding length.
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* @param {string} [chars=' '] The string used as padding.
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* @returns {string} Returns the padding for `string`.
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*/
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function createPadding(length, chars) {
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chars = chars === undefined ? ' ' : baseToString(chars);
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var charsLength = chars.length;
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if (charsLength < 2) {
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return charsLength ? baseRepeat(chars, length) : chars;
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}
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var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
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return hasUnicode(chars)
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? castSlice(stringToArray(result), 0, length).join('')
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: result.slice(0, length);
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}
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module.exports = createPadding;
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