Help with regex in javascript.

Question

Whatever string is given I have to see if there is exactly one space after and before =, If it is more than one space in either side I have to reduce that to one and if there is none, I have to insert one.

How should I do that ? String can contain anything.

Thanks

Answer 1

You can do this:

str = str.replace(/ *= */g, " = ");

This will replace all = characters regardless of how many spaces it is surrounded by. The * quantifier will match as most spaces as possible while allowing even no spaces at all.

Answer 2

Try this:

var out = in.replace(/ *= */g, " = ");

Basically just replace zero or more instances of a space with a space and you get both desired results. If zero, then you get one. If more than one, you get one.

Answer 3

Make the following replacement:

s = s.replace(/ *= */g, ' = ')

Answer 4

myString.replace(/\s*=\s*/g, " = ")

will do the same as other given answers, but allow any type of space characters to be replaced (spaces, tabs, etc.).