Get first word of string

Question

Okay, here is my code with details of what I have tried to do:

var str = "Hello m|sss sss|mmm ss"; //Now I separate them by "|" var str1 = str.split("|");  //Now I want to get the first word of every split-ed sting parts:  for (var i = 0; i < codelines.length; i++) {   //What to do here to get the first word of every spilt } 

So what should I do there? :\

What I want to get is :

• firstword[0] will give "Hello"

• firstword[1] will give "sss"

• firstword[2] will give "mmm"

Answer 1

Use regular expression

var totalWords = "foo love bar very much.";    var firstWord = totalWords.replace(/ .*/,'');    $('body').append(firstWord);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Answer 2

Split again by a whitespace:

var firstWords = []; for (var i=0;i<codelines.length;i++) {   var words = codelines[i].split(" ");   firstWords.push(words[0]); } 

Or use String.prototype.substr() (probably faster):

var firstWords = []; for (var i=0;i<codelines.length;i++) {   var codeLine = codelines[i];   var firstWord = codeLine.substr(0, codeLine.indexOf(" "));   firstWords.push(firstWord); }