what is closure in javascript
function OuterFunction() {
var outerVariable = 100;
function InnerFunction() {
alert(outerVariable);
}
return InnerFunction;
}
var innerFunc = OuterFunction();what is closure in javascript
function OuterFunction() {
var outerVariable = 100;
function InnerFunction() {
alert(outerVariable);
}
return InnerFunction;
}
var innerFunc = OuterFunction();closure in javascript
//Closures
Closures means a function bind together with its lexical environment
OR
You can say a function along with its lexical scope bundle together forms
a closure
OR
In other words, a closure gives you access to an outer function's
scope from an inner function.
//Example
function x(){
var a = 7;
function y(){ //function y bind with its lexical enviroment
console.log(a);
}
a = 100;
return y;
}
var z = x();
console.log(z) //Output is 100Copyright © 2021 Codeinu
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