CODEWITHSUNDEEP
javascriptoptimizationrequirejslogic
jsduniya
jsduniya

Reputation: 2474

How to avoid calling every time a method

I have method like below

function setme(){
   var date = 'new date()';
}

function getName1(){
 setme();

}

function getName2(){
 setme();

}

function getName3(){
 setme();

}
function getName4(){
 setme();

}

how do avoid calling setme method every time, do we have any other optimized solution ?

Upvotes: 0

Views: 169

Answers (2)

Bryan
Bryan

Reputation: 71

This will only set date once and then set the setFunction to null to release the memory if your setFunction is very large for some reason.

function executeOnce(executable) {
  return function () {
    if (executable !== null) {
      executable();
      executable = null;
    }
  }
}

var setme = executeOnce(
  function() {
    date = 'new date()';
  }
);

function getName1(){
 setme();

}

function getName2(){
 setme();

}

function getName3(){
 setme();

}
function getName4(){
 setme();

}

Upvotes: 1

Carlos Alves Jorge
Carlos Alves Jorge

Reputation: 1995

I'm not sure exactly what you are trying to accomplish since a date will always need a function to retrieve the latest. But if what you want is to define variables in the constructor in a class oriented way:

    class Names {
            constructor() {
                this.date = new Date();
            }

            getName1() {
                return this.date;
            }

            getName2() {
                return this.date;
            }

            getName3() {
                return this.date;
            }
        }
    //If you only create a new class object
var n = new Names;
console.log(n.getName1());
console.log(n.getName2());
console.log(n.getName3());

//if you create a new class object for every call

        console.log((new Names).getName1());
        console.log((new Names).getName2());
        console.log((new Names).getName3());

Upvotes: 3

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