Created
July 4, 2016 22:43
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function example(a, b) {} | |
example.length === 2; // returns => true | |
example(1, 2, 3); | |
// a === 1 | |
// b === 2 | |
// arguments[0] === 1 | |
// arguments[1] === 2 | |
// arguments[2] === 3 |
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function outer() { | |
var that = this; | |
var inner1 = function inner1() {}; // this !== that | |
var inner2 = inner1.bind(that); // this === that | |
} |
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var str, str2; | |
var num, num2; | |
var bool, bool2; | |
var obj, obj2; | |
var func, func2; | |
str = 'string'; | |
num = 5; | |
bool = true; | |
obj = {}; | |
func = function(){}; | |
// str => new primitive | |
// num => new primitive | |
// bool => new primitive | |
// obj => same object reference | |
// func => same object reference | |
str2 = str; // new place in memory | |
num2 = num; // new place in memory | |
bool2 = bool; // new place in memory | |
obj2 = obj; // same place in memory | |
func2 = func; // same place in memory | |
is.empty(obj); // return => true | |
is.empty(obj2); // return => true | |
is.empty(func); // return => true | |
is.empty(func2); // return => true | |
obj2.prop = true; | |
func.prop = null; | |
is.empty(obj); // return => false | |
is.empty(obj2); // return => false | |
is.empty(func); // return => false | |
is.empty(func2); // return => false |
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