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Asked: 2026-06-18T07:13:06+00:00

I want to store + operator in variable. <head> <script type=text/javascript> var m= function(a,b){

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I want to store “+” operator in variable.

<head>
<script type="text/javascript">
var m= function(a,b){
return a-b
}
var jj= 10 m 10;
alert(jj)
</script>
</head>
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1 Answer

  1. Editorial Team

    Avoiding the use of eval, I would recommend to use a map of functions :

    var operators = {
   '+': function(a, b){ return a+b},
   '-': function(a, b){ return a-b}
}

    Then you can use 

    var key = '+';
var c = operators[key](3, 5);

    Note that you could also store operators[key] in a variable.

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