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14 lines
503 B
14 lines
503 B
3 years ago
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/**
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* @description: 数字保留几位小数
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* @param {Number|String} number 数字
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* @param {Number} digits 小数位数
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* @return {String}
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* @example: toFixed(1234.25555,2) // '1234.25'
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*/
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export default function toFixed(number, digits = 0) {
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const str = ('' + number);
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const decimalIndex = str.lastIndexOf('.');
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const decimal = (decimalIndex > -1 ? str.substr(decimalIndex + 1, digits) : '').padEnd(digits, '0');
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return '' + parseInt(number) + (decimal.length ? '.' + decimal : '');
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};
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