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I have a dynamically filled variable containing numbers formatted as text that are separated by commas.

When alerting this out for testing I get something like: var myVar = 3,5,1,0,7,5

How can I convert this variable into a valid JavaScript or jQuery array containing integers ?

I tried $.makeArray(myVar) but that doesnt work.

Thanks for any help with this, Tim.

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2 Answers

up vote 3 down vote accepted

Simple, try this.

var myVar = 3,5,1,0,7,5;
myVarArray = myVar.split(",");

// Convert into integers 
for(var i=0, len = myVarArray.len; I < len; I++){
  myVarArray[i] = parseInt(myVarArray[i], 10);
}
// myVarArray is array of integers
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1  
Thanks very much - this looks great. Can you explain what the ", 10" does ? –  user2571510 13 hours ago
2  
@user2571510 you can get complete doc for parseInt from developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… –  Anoop 13 hours ago
    
I see - thanks again ! I will accept as soon as I can. –  user2571510 13 hours ago
    
@user2571510, check out my answer too –  Amit Joki 13 hours ago
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up vote 1 down vote

You can just do this:

var myVar = "3,5,1,0,7,5"; 
var myArr = myVar.split(',').map(function(x){return +x});

myArr will have integer array.

I changed myVar = 3,5,1,0,7,5 to myVar = "3,5,1,0,7,5" because the former wasn't valid.

I presume that it is a string.

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Thanks. This is very helpful too. –  user2571510 13 hours ago
    
@user2571510, this myVar = 3,5,1,0,7,5 is not valid. –  Amit Joki 13 hours ago
1  
It works for me. Just copy paste my answer in your browser console and you'll see the result –  Amit Joki 13 hours ago
1  
No. You don't have to do anything except copying my answer as it is. –  Amit Joki 13 hours ago
1  
Take a look: jsfiddle.net/AmitJoki/279BX –  Amit Joki 12 hours ago
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