JavaScript-如何删除字符串中的某些空格

Question

For Example, I have a string like this:

"1 - A1, 2 - A2, 3 - A3";

I want to remove the white spaces ONLY after the commas, NOT the white space in between the hypens "-" so end result looks like this:

"1 - A1,2 - A2,3 - A3";

currently I'm doing:

myString.replace(/\s/g, '');

but this removes all whitespace, including whitespace on both sides of the hyphens. I just want to remove the whitespace after the commas.

Is this doable?

Thanks

Answer 1

You can use:

var str = "1 - A1, 2 - A2, 3 - A3";
var r = str.replace(/,\s+/g, ',');
//=> "1 - A1,2 - A2,3 - A3"

,\\s+ will all commas with at least one whitespace afterwards.

Answer 2

如果在这些逗号后始终始终只有一个空格字符，则为简单的解决方案：

"1 - A1, 2 - A2, 3 - A3".split(", ").join(",");