答案 0 :(得分:2)
使用toFixed
方法:
console.log( (500).toFixed(2) )
console.log( (500.5678).toFixed(2) )
答案 1 :(得分:0)
var number = 500,
numberLength = number.length,
newLength = parseInt((numberLength + 2), 10),
number = number.toPrecision(newLength);
这将在每个数字的末尾添加2个小数位...
或者您可以这样做:
var number = 500,
newNumber = number + ".00";