data:image/png;base64,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_get(name)cmd§_getVarNamesDicterr_error(msg)Reference Error: is not defined.§_getVarNamesDicterr_error(msg)Reference Error: is not defined.a
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z0functionparametersbodyouter context§_getVarNamesDictbodyrunning contextouter contextouter contextbindingsparameters§_getVarNamesDictbodyrunning contextouter contextouter contextbindingsparametersdata:image/png;base64,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 init() {
var name = "Mozilla"; // name is a local variable created by init
function displayName() {
// displayName() is the inner function, that forms the closure
console.log(name); // use variable declared in the parent function
}
displayName();
}
init();displayNamemyFuncmakeFuncmyFuncfunction makeFunc() {
const name = "Mozilla";
function displayName() {
console.log(name);
}
return displayName;
}
const myFunc = makeFunc();
myFunc();add5makeAdder5add10makeAdder10add52add102function makeAdder(x) {
return function (y) {
return x + y;
};
}
const add5 = makeAdder(5);
const add10 = makeAdder(10);
console.log(add5(2)); // 7
console.log(add10(2)); // 12incrementdecrementvaluecountervaluecounterincrementcounterincrementcountervaluecounterdecrementcountervalueconst counter = (function () {
let privateCounter = 0;
function changeBy(val) {
privateCounter += val;
}
return {
increment() {
changeBy(1);
},
decrement() {
changeBy(-1);
},
value() {
return privateCounter;
},
};
})();
console.log(counter.value()); // 0.
counter.increment();
counter.increment();
console.log(counter.value()); // 2.
counter.decrement();
console.log(counter.value()); // 1.incrementdecrementvaluecounter1makeCountercounter2makeCountercounter1valuecounter1incrementcounter1incrementcounter1valuecounter1decrementcounter1valuecounter2valueconst makeCounter = function () {
let privateCounter = 0;
function changeBy(val) {
privateCounter += val;
}
return {
increment() {
changeBy(1);
},
decrement() {
changeBy(-1);
},
value() {
return privateCounter;
},
};
};
const counter1 = makeCounter();
const counter2 = makeCounter();
console.log(counter1.value()); // 0.
counter1.increment();
counter1.increment();
console.log(counter1.value()); // 2.
counter1.decrement();
console.log(counter1.value()); // 1.
console.log(counter2.value()); // 0.sum1234// global scope
const e = 10;
function sum(a) {
return function (b) {
return function (c) {
// outer functions scope
return function (d) {
// local scope
return a + b + c + d + e;
};
};
};
}
console.log(sum(1)(2)(3)(4)); // 20sum2sum1sum3sum22sum4sum33resultsum44result// global scope
const e = 10;
function sum(a) {
return function sum2(b) {
return function sum3(c) {
// outer functions scope
return function sum4(d) {
// local scope
return a + b + c + d + e;
};
};
};
}
const sum2 = sum(1);
const sum3 = sum2(2);
const sum4 = sum3(3);
const result = sum4(4);
console.log(result); // 200