function iCantThinkOfAName(num, obj) {
// This array variable, along with the 2 parameters passed in,
// are 'captured' by the nested function 'doSomething'
var array = [1, 2, 3];
function doSomething(i) {
num += i;
array.push(num);
console.log('num: ' + num);
console.log('array: ' + array);
console.log('obj.value: ' + obj.value);
}
return doSomething;
}
var referenceObject = { value: 10 };
var foo = iCantThinkOfAName(2, referenceObject); // closure #1
var bar = iCantThinkOfAName(6, referenceObject); // closure #2
foo(2);
/*
num: 4
array: 1,2,3,4
obj.value: 10
*/
bar(2);
/*
num: 8
array: 1,2,3,8
obj.value: 10
*/
referenceObject.value++;
foo(4);
/*
num: 8
array: 1,2,3,4,8
obj.value: 11
*/
bar(4);
/*
num: 12
array: 1,2,3,8,12
obj.value: 11
*/
view raw iCantThinkOfAName.js hosted with ❤ by GitHub
function iCantThinkOfAName(num, obj) {
// This array variable, along with the 2 parameters passed in,
// are 'captured' by the nested function 'doSomething'
var array = [1, 2, 3];
function doSomething(i) {
num += i;
array.push(num);
console.log('num: ' + num);
console.log('array: ' + array);
console.log('obj.value: ' + obj.value);
}
return doSomething;
}
var referenceObject = { value: 10 };
var foo = iCantThinkOfAName(2, referenceObject); // closure #1
var bar = iCantThinkOfAName(6, referenceObject); // closure #2
foo(2);
/*
num: 4
array: 1,2,3,4
obj.value: 10
*/
bar(2);
/*
num: 8
array: 1,2,3,8
obj.value: 10
*/
referenceObject.value++;
foo(4);
/*
num: 8
array: 1,2,3,4,8
obj.value: 11
*/
bar(4);
/*
num: 12
array: 1,2,3,8,12
obj.value: 11
*/
view raw iCantThinkOfAName.js hosted with ❤ by GitHub