April 8, 2022

Create a named group in a JavaScript RegExp

To create a named group in a JavaScript RegExp, we can use the (?<name>...) syntax:

ts
const text = 'foo bar foo'
const regex = /(?<wanted>bar)/
 
const result = regex.exec(text)
if (result === null) {
    throw new Error('No match')
}
 
const wantedGroup = result.groups?.wanted
          
const wantedGroup: string | undefined

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