Getting substring with regex only returns one value-CodePudding

I am trying to get all substrings of "username" from a string. A username must start with an @ and end with a " ". Here is how I am doing this:

const string = "@trevor you know who @johnny is?"
const regex = /\B@\w /
console.log(regex.exec(string))

Output:

["@trevor"]

Expected output:

["@trevor", "@johnny"]

How can I make the regex remove multiple matches from the string rather than just the first?

CodePudding user response：

If we use match() with your regex in global mode your code is working:

const string = "@trevor you know who @johnny is?"
const regex = /\B@\w /g
console.log(string.match(regex));

CodePudding user response：

you can try matchAll on the string

const string = "@trevor you know who @johnny is?"
const regex = /\B@\w /g
console.log([...string.matchAll(regex)])

To get exact values as per shown samples try following, where we are using array values to get the required output.

const string = "@trevor you know who @johnny is?"
const regex = /\B@\w /g
console.log([...string.matchAll(regex)].map(([match]) => match));