CODEWITHSUNDEEP
javascriptregexstringcpu-wordposition
Luke Burns
Luke Burns

Reputation: 1929

Position of first word of string in Javascript

I originally used indexOf to find a space but I want to find any word boundary.

Something like this, but what regex?

var str = "This is a sentence",
firstword = str.search("");
return word;

I want to return "This". Even in the case of a tab, period, comma, etc.

Upvotes: 3

Views: 5144

Answers (2)

jigfox
jigfox

Reputation: 18185

This splits the string at every word boundary and returns the first one:

var str = "This is a sentence";
firstword = str.split(/\b/)[0];

Upvotes: 3

Matt Mitchell
Matt Mitchell

Reputation: 41823

Something like this:

var str = "This is a sentence"; 
return str.split(/\b/)[0];

Although you would probably want to check that there was a match like this:

var str = "This is a sentence"; 
var matches = str.split(/\b/);
return matches.length > 0 ? matches[0] : "";

Upvotes: 11

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