Dynamic function call in JavaScript

Question

Is there a better way of doing this to dynamically:

function abcKY(a, no) {
  console.log(a + no);
}
function abcBC(a, no) {
  console.log(a - no);
}
var result_from_db = "abcKY";

eval(result_from_db)(1, 2);

I have multiple different requirements and I would like to standard like to make it configurable. So having a dynamic function call will be helpful.

SerCrAsH · Accepted Answer · 2021-04-11 18:49:44Z

1

You can put inside of an object function mappings as key-function and call it using your variable result_from_db. Check this:

var functions = {};
functions.abcKY = function(a, no) {
  console.log(a + no);
};
functions.abcBC = function(a, no) {
  console.log(a - no);
};
var result_from_db = "abcKY";
functions[result_from_db](1, 2);

answered Apr 11, 2021 at 18:49

SerCrAsH

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