在 JavaScript 中从数字中删除小数点
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Remove decimal point from number in JavaScript
提问by JVE999
I would like to remove the decimal, but keep all of the digits.
我想删除小数，但保留所有数字。
All I can think of is to find the length of the number and find out which power of 10 it's just larger than, then multiply. Although, I can't find how to find the length of a number.
我能想到的就是找出数字的长度并找出它比 10 的哪个幂大，然后相乘。虽然，我找不到如何找到数字的长度。
采纳答案by Anand
回答by Jimmy
var newnumber = parseInt(num.toString().replace(".", ""), 10);
回答by Rory McCrossan
Use replace:
使用replace：
var num = 1234.5678;
alert((num + '').replace('.', ''));
回答by Daniil Grankin
Try this
试试这个
parseInt(num.toString().replace('.', ''))
回答by Matthew Riches
If you want a more generic way which will remove all non numerics you could use:
如果您想要一种更通用的方法来删除所有非数字，您可以使用：
var num = 1234.5678;
var str = new String(num);
alert(str.replace(/[^0-9|-]/g, ""));
and if it needs to be a number afterwards just wrap it in a parseInt.
如果之后它需要是一个数字，只需将它包装在 parseInt 中。
