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Javascript (Data type (Primative (String, Number, Boolean, Undefined, Null…
Javascript
Data type
Primative
String
Number
Boolean
Undefined
Null
Symbol
Object
Function
Array
Date
Math
Type Verify
typeof
only affect primitive type
function
null
instanceof
not working under Iframe
Object.prototype.toString.apply()
not working in IE6/7/8
null & undefined
how javascript work
event-loop
memory leak
runtime
Expression & Operator
Expression
Primary expression
Left-hand-side expressions
Operator
Unary
Increment and decrement
Arithmatic
Relation operator
Equaltity
Object
Clone
Deep
JSON.parse(JSON.stringify())
Shallow
spreator
Object.assign(target, source)
Create
Literal
new
Object.create()
Statements & declarations
statements
control flow
var
block
try...catch
functions and classes
iterations
for...in
while
switch
do...while
others
with
Array
Function
this
Closure & lexical scope
OOP
Regexp