We can quickly extract dynamic text using regex capturing group. It is useful when we want to extract information from a bunch of strings that are using the same words.
const example = 'You have bought 2 tickets'
const regex = /You have bought (?<tickets>\d*) tickets/
const match = example.match(regex);
console.log(match.groups.tickets);
// output: 2
In the example above, we want to extract the number of tickets from the string You have bought 2 tickets. We can define a regular expression pattern by enclosing it between slashes.
Next, we can define the named capturing group using (?<Name>x). We can access it in the match.groups object.
Here's an example where we extract multiple text.
const example = 'You have bought 2 tickets and 5 drinks'
const regex = /You have bought (?<tickets>\d*) tickets and (?<drinks>\d*) drinks/
const match = example.match(regex);
console.log(match.groups);
/*
output: { tickets: '2', drinks: '5' }
*/
Top comments (1)
Very nice and informative post :)