Match all occurrences in string and replace it

Finds all occurrences in the string for given regex and replaces the value with a new string (using callback function).

Install

npm install match-replace-all

Usage

• Create a new RegExp object with global and multiline option.
• Provide a callback that will receive match array and return a new string that will replace the original string.
• Callback can return false to skip replacement.
• If the new value is same as original, no replacement is done.

import matchReplaceAll from 'match-replace-all'

const regex = new RegExp('<a([^>]*)>([^<]+)</a>', 'gm')
const string = 'testing <a>first</a> <a target="_blank">second</a>'
// Add href attribute to link with the links value
const newString = matchReplaceAll(regex, string, (match) => {
        const value = match[2]
        const attributes = match[1]
        return `<a href="http://${value}"${attributes}>${value}</a>`
    })
console.log(newString)

Result:

Result: testing <a href="http://first">first</a> <a href="http://second" target="_blank">second</a>