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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | 10x 10x 10x 2x | /** * 修正补位 * @method num/fixTo * @param {Number|String} num 要补位的数字 * @param {Number} [w=2] w 补位数量 * @return {String} 经过补位的字符串 * @example * var $fixTo = require('@spore-ui/kit/packages/num/fixTo'); * $fixTo(0, 2); //return '00' */ function fixTo(num, w) { var str = num.toString(); w = Math.max((w || 2) - str.length + 1, 0); return new Array(w).join('0') + str; } module.exports = fixTo; |