Split each string from any given paragraph in javascript

Question

I have a textArea. I am trying to split each string from a paragraph, which has proper grammar based punctuation delimiters like ,.!? or more if any.

I am trying to achieve this using Javascript. I am trying to get all such strings in that using the regular expression as in this answer

But here, in javascript for me it's not working. Here's my code snippet for more clarity

$('#split').click(function(){
    var textAreaContent = $('#textArea').val();
    //split the string i.e.., textArea content
    var splittedArray = textAreaContent.split("\\W+");
    alert("Splitted Array is "+splittedArray);
    var lengthOfsplittedArray = splittedArray.length;
    alert('lengthOfText '+lengthOfsplittedArray);
  });

Since its unable to split, its always showing length as 1. What could be the apt regular expression here.

try this stackoverflow.com/questions/650022/…

Chamika Sandamal
– Chamika Sandamal

2013-05-18 14:08:28 +00:00
Commented May 18, 2013 at 14:08 — Chamika Sandamal
– Chamika Sandamal, Commented May 18, 2013 at 14:08

Ian · Accepted Answer · 2013-05-18 14:03:03Z

2

The regular expression shouldn't differ between Java and JavaScript, but the .split() method in Java accepts a regular expression string. If you want to use a regular expression in JavaScript, you need to create one...like so:

.split(/\W+/)

DEMO: http://jsfiddle.net/s3B5J/

Notice the / and / to create a regular expression literal. The Java version needed two "\" because it was enclosed in a string.

Reference:

https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Regular_Expressions

answered May 18, 2013 at 14:03

Ian

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4 Comments

rcpayan Over a year ago

it ignores all of special chars, for example if you write [asd] then its output asd

srk Over a year ago

Works good. In your DEMO, I have given input as Hello, stackoverflow! It showed length as 3. Shouldn't it be 2?

rcpayan Over a year ago

as i said, it ignores special chars that means count them too

Ian Over a year ago

@srk You asked how to get the regular expression to work in JavaScript - which is what I provided. If you need it to do something specific more, explain. So is your main point to get all words in the textarea? Without the sentence punctuation? I'm happy to try and help

Anirudha · Accepted Answer · 2013-05-18 14:04:56Z

0

You can try this

textAreaContent.split(/\W+/);

answered May 18, 2013 at 14:04

Anirudha

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Comments

rcpayan · Accepted Answer · 2013-05-18 14:32:47Z

0

\W+ : Matches any character that is not a word character (alphanumeric & underscore).

so it counts except alphanumerics and underscore! if you dont need to split " " (space) then you can use;

var splittedArray = textAreaContent.split("/\n+/");

answered May 18, 2013 at 14:32

rcpayan

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