split function in javascript

Question

i have an array which contains different values, i want split them off and print in browser. but i want alert it first value. i have made a function but it is not wokring

<script type="text/javascript">
$(function(){
    var jam= new Array("first","second","third","fourth");
    var Klnew= jam.split(",");

    //for(i=0;i<Klnew.length;i++) {}

    alert(Klnew[0])     
});    
</script>

i'm also wondering what should happen if you call split on an array :D — sdepold
– sdepold, Commented Jun 14, 2012 at 6:40
@sdepold. ohhh, please don't, the world will come to it's end! — gdoron
– gdoron, Commented Jun 14, 2012 at 6:43
@gdoron :D it could probably return an array of arrays. so every string inside the array gets split :D — sdepold
– sdepold, Commented Jun 14, 2012 at 6:46

Quentin · Accepted Answer · 2012-06-14 06:46:26Z

7

You can't split an array. It is already split.

You might be looking for something like this:

var foo = ['a', 'b', 'c']; 
console.log(foo.shift());    // Outputs "a"
console.log(foo.join(','));  // Outputs "b,c"

… but it hard to tell what your goals are from your question.

edited Jun 14, 2012 at 6:46

answered Jun 14, 2012 at 6:40

Quentin

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Comments

Sunil Dodiya · Accepted Answer · 2012-06-14 06:40:11Z

1

   $(function(){
        var jam= new Array("first","second","third","fourth");
        var Klnew= jam.slice();
    //  for(i=0;i<Klnew.length;i++) {}
        alert(Klnew[0])
   })

answered Jun 14, 2012 at 6:40

Sunil Dodiya

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Comments

gdoron · Accepted Answer · 2012-06-14 06:44:51Z

1

var jam= new Array("first","second","third","fourth");
alert(jam[0]); // alert before the join.
var Klnew= jam.join(","); // join, not split the array...

Output:

"first,second,third,fourth"

edited Jun 14, 2012 at 6:44

answered Jun 14, 2012 at 6:39

gdoron

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2 Comments

Jitender Over a year ago

ok thanks but now i want split them and print using document.write

gdoron Over a year ago

@Quentin. I meant join, sorry.

sdepold · Accepted Answer · 2012-06-14 06:42:21Z

0

You would use split for getting an array out of a string:

"first,second,third,fourth".split(',') ==> ['first', 'second', 'third', 'fourth']

answered Jun 14, 2012 at 6:42

sdepold

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Comments

Daniil Ryzhkov · Accepted Answer · 2012-06-14 06:45:39Z

0

split (of string) method splits string to array.

join (of array) method joins array elements into string. So:

arr = Array("first","second","third","fourth");
str = arr.join(",")
alert(str) // will alert "first,second,third,fourth"
alert(arr == str.split(","))// will alert true

answered Jun 14, 2012 at 6:45

Daniil Ryzhkov

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1 Comment

RobG Over a year ago

The second alert is false because both sides are objects and therefore must return false by definition.

sloth · Accepted Answer · 2012-06-14 13:08:53Z

0

even this is going to work--

var jam = new Array("first", "second", "third", "fourth");
alert(jam[0]);

edited Jun 14, 2012 at 13:08

sloth

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answered Jun 14, 2012 at 6:44

swapnesh

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