tongtong-utils/lib/number.js

String类

'use strict';

Number.toFix = function (number) {
    var length = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2;

    var int = parseFloat(number);
    if (int.toString().indexOf('.') > 0) {
        return parseFloat(int.toFixed(length));
    }
    return int;
};
Number.fixedZero = function (val, length) {
    if (isNaN(val)) {
        return val;
    }
    val = val.toString();
    while (val.length < length) {
        val = '0' + val;
    }
    return val;
};