Regular expression for 1 type of youtube watch url-CodePudding

I need to create a regular expression for a youtube URL but only for the "watch url". How can be that done?

Some examples of the urls are such as this

https://www.youtube.com/watch?v=NL5ZuWmrisA

https://www.youtube.com/watch?v=62d2QvWAVt4

CodePudding user response：

To find them in a text you can use this pattern

\bhttp\S \.youtube\.com\/watch\?v=([A-Za-z0-9] )\b

The \b is a word boundary

The ID is captured in group 1

CodePudding user response：

let input = "https://www.youtube.com/watch?v=NL5ZuWmrisA"
let pattern = /watch\?v=(?<id>. $)/gm

let groups = pattern.exec(input).groups

console.log(groups.id)

The regex checks if the input has 'watch' in it then captures the vid using named group.