dynamical operator javascript

Question

Is there a way to choose dynamicaly an operator

do something like this:

     var val1="1",
         val2="1",
         oper="===";
     if(val1 oper val2){
         console.log("im in"); 
     }else{
         console.log("im out");       
     }

No. (everything else I type is to fulfill the min. character limit). Let's NOT talk about eval(). — Mörre
– Mörre, Commented Mar 20, 2012 at 15:23
If you create an operator -> function map, then yes. eval is an option if you have control over the input. — Felix Kling
– Felix Kling, Commented Mar 20, 2012 at 15:25

Bob Lauer · Accepted Answer · 2012-03-20 15:28:24Z

3

You can not do a dynamic operator, but you can achieve the same thing using functions instead.

var val1 = "1",
    val2 = "1",
    oper = function(a, b) { return a === b; };

 if(oper(val1, val2)) {
     console.log("im in"); 
 } else {
     console.log("im out");       
 }

answered Mar 20, 2012 at 15:28

Bob Lauer

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1 Comment

Marcio Over a year ago

nice approach your doing that's definitly one possibility

kirilloid · Accepted Answer · 2012-03-20 15:24:36Z

1

No javascript syntax allows that. You can generate string with js code and use eval, but you'd better not use eval at all.

answered Mar 20, 2012 at 15:24

kirilloid

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