CODEWITHSUNDEEP
javascriptregexstring
Sâlmà
Sâlmà

Reputation: 35

What is the best way to get numbers from the end of string?

I have a string tag:blogger.com,1999:blog-1234567.post-8912345 for example, and I want to get the last numbers "8912345", what is the best way to do this?

var str = "tag:blogger.com,1999:blog-1234567.post-8912345",
    postId = str.match(/\d+$/)[0];

or

var str = "tag:blogger.com,1999:blog-1234567.post-8912345",
    postId = str.split('-')[2];

Upvotes: 0

Views: 39

Answers (1)

Jack Bashford
Jack Bashford

Reputation: 44087

Your first way was better, as it wouldn't matter how many dashes were before the number. You can also use destructuring to remove the [0]:

var str = "tag:blogger.com,1999:blog-1234567.post-8912345",
  [postId] = str.match(/\d+$/);

console.log(postId);

Upvotes: 1

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