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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;
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