js closure examples
function outer() {
var counter = 0; // Backpack or Closure
function incrementCounter() {
return counter++;
}
return incrementCounter;
}
const count = outer();
count(); // 0
count(); // 1
count(); // 2js closure examples
function outer() {
var counter = 0; // Backpack or Closure
function incrementCounter() {
return counter++;
}
return incrementCounter;
}
const count = outer();
count(); // 0
count(); // 1
count(); // 2closure in javascript
function makeFunc() {
var name = 'Mozilla';
function displayName() {
alert(name);
}
return displayName;
}
var myFunc = makeFunc();
myFunc();closure in javascript
var counter = (function() {
var privateCounter = 0;
function changeBy(val) {
privateCounter += val;
}
return {
increment: function() {
changeBy(1);
},
decrement: function() {
changeBy(-1);
},
value: function() {
return privateCounter;
}
};
})();
console.log(counter.value()); // logs 0
counter.increment();
counter.increment();
console.log(counter.value()); // logs 2
counter.decrement();
console.log(counter.value()); // logs 1A closure Function
var returns_a_func = function () {
var word = 'I can see inside ' function sentence(){ var word2 = 'I can also see outside. ' console.log(word + 'and ' + word2) } return sentence;
}var finalSentence = returns_a_func()finalSentence()Copyright © 2021 Codeinu
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