CODEWITHSUNDEEP
javascriptregex
arjay07
arjay07

Reputation: 421

Regular Expression starts with @ symbol

In regular expression, how do I look for matches that start with an @symbol? The symbol cannot be in the middle of a word (link in an email address).

For example, a string that looks like this:

@someone's email is [email protected] and @someoneelse wants to send an email.

The expression I'd use is /^@[\w]/g

It should return:

@someone's

@someoneelse

The expression I use doesn't seem to work.

Upvotes: 4

Views: 8580

Answers (3)

Tamzid Ahmed
Tamzid Ahmed

Reputation: 640

You can use lodash, if you are using JavaScript.

words function from javascript takes two params. first param is for sentence and the second one is optional. You can pass regex which will find the word with starting letter "@".

import _ from "lodash";

_.words(sentence, /\B@\S+/g);

Upvotes: 1

hwnd
hwnd

Reputation: 70732

You can utilize \B which is a non-word boundary and is the negated version of \b.

var s = "@someone's email is [email protected] and @someoneelse wants to send an email.",
    r = s.match(/\B@\S+/g);

console.log(r); //=> [ '@someone\'s', '@someoneelse' ]

Upvotes: 6

chiliNUT
chiliNUT

Reputation: 19573

/(^|\s)@\w+/g

The [\w] only matches a single word character, so thats why your regex only returns @s. \w+ will match 1 or more word characters.

If you want to get words at the beginning of the line or inside the string, you can use the capture group (^|\s) which does either the beginning of the string or a word after a whitespace character.

DEMO

var str="@someone's email is [email protected] and @someoneelse wants to send an email.";
console.log(str.match(/(^|\s)@\w+/g)); //["@someone", " @someoneelse"]

Upvotes: 0

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