Possible Duplicate:
Truncate Decimal number not Round Off in jquery
我在我的 < code> Y < /code > 变量中有以下数值: 5.37777777 , 4.666666 。
我怎样才能用JavaScript 显示5.3 或 5.6 或 5.6 或 和 JavaScript 显示?
提前感谢!
在任何语言中这样做的标准方式是将数值乘以所要求的精确度的反数,缩短,然后再次分隔:
var truncated = Math.floor(val * 10) / 10;
如果您想要严格的 绕圈 而不是 truncation , 那么Javascript也有 Number.toFixed () 内建的, 为你这样做。
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