Let's say I have a string: "This is a string-thing". I want to split on both space and hyphen, but keep the separators together with the previous word => ["This ", "is ", "a ", "string-", "thing"]
I'm currently doing this using the following regExp:
string.split(/(?<=[\s-])/g)
This does what is supposed to.. at least in Chrome. As I understand Safari doesn't support lookbehind in regExp which breaks the code. Is there any way to do this without lookbehind?
You could match the words without lookbehind.
const
string = "This is a string-thing",
parts = string.match(/.+?([\s-]|$)/g);
console.log(parts);You might also use split with a capture group to keep the value to split on, and remove the empty entries from the resulting array.
The pattern matches
( Capture group 1
[^\s-]* Repeat 0+ times matching any char other than a whitespace char or -[\s-] Match either a whitespace char or -) Close group 1Note that \s can also match a newline.
const s = "This is a string-thing";
const regex = /([^\s-]*[\s-])/;
console.log(s.split(regex).filter(Boolean));