Create custom javascript function

Question

Hi I want to create several function which work similar but use a slightly different value. I cannot change the parameters because I use these for a callback of a library. My first idea:

for(i = 0; i < 3; i++) {
  f = function() {
    console.log(i);
  };
}

This obviously copies a refence of i to the function but I rather want to value at that time so that each function outputs a different value. I appreciate your help.

Mithlesh Kumar · Accepted Answer · 2014-01-20 10:26:37Z

2

you may try this way:

var f=[];    
for(i = 0; i < 3; i++) {
      f[i] = (function(index) {   
            return function() {          
                console.log("My value: " + index);
            } 
        })(i);
    }

working demo here

answered Jan 20, 2014 at 10:26

Mithlesh Kumar

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1 Comment

Mithlesh Kumar Over a year ago

Have you check demo this will create 3 functions having different values (this idea come from "but use a slightly different value").

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