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(); // 2syntax of closures
/*
{ (parameters) -> return type in
body
}
*/
var numbers = [1, 2, 3, 4]
var reversed = numbers.sorted(by: {(a: Int, b: Int) -> Bool in
return a > b
})closures
{ (parameters) -> returnType in
// statements
}A closure Function
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