closure
var counter = (function() { //exposed function references private state (the outer function’s scope / lexical environment) after outer returns.
var privateCounter = 0;
function changeBy(val) { privateCounter += val; }
return { increment: function() {changeBy(1); },
decrement: function() {changeBy(-1);},
value: function() {return privateCounter; }
};
})();
counter.increment(); counter.increment();
counter.decrement();
counter.value(); // 1closure 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 1closure
func main() {
x := 0
increment := func() int {
x++
return x
}
fmt.Println(increment())
fmt.Println(increment())
}closure
function add(a) {
return function(b) {
return a + b;
};
}
let addTen = add(10);
let addSeven = addTen(7);
console.log(addSeven); // 17Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
