MDN参考资料运营商
== ， === Equality Operators
==, === Equality Operators
- Which equals operator (== vs ===) should be used in JavaScript comparisons?
- How does JS type coercion work?
- In Javascript, <int-value> == "<int-value>" evaluates to true. Why is it so?
- [] == ![] evaluates to true
- Why does "undefined equals false" return false?
- Why does !new Boolean(false) equals false in JavaScript?
- Javascript 0 == '0'. Explain this example
- Why false == "false" is false?
！= ，！== 不等运算符
- != vs. !==
- Javascript operator !==
&& ， || ，！逻辑运算符
- Logical operators in JavaScript — how do you use them?
- Logical operator || in javascript, 0 stands for Boolean false?
- What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?, JavaScript OR (||) variable assignment explanation, What does the construct x = x || y mean?
- Javascript AND operator within assignment
- What is "x && foo()"? (also here and here)
- What is the !! (not not) operator in JavaScript?
- What is an exclamation point in JavaScript?
，逗号运算符
- What does a comma do in JavaScript expressions?
- Comma operator returns first value instead of second in argument list?
- When is the comma operator useful?
？...：条件（三元）运算符
- Question mark and colon in JavaScript
- Operator precedence with Javascript Ternary operator
- How do you use the ? : (conditional) operator in JavaScript?
| ，& ， ^ ，〜 按位OR，AND ，XOR& NOT运营商
- What do these JavaScript bitwise operators do?
- How to: The ~ operator?
- Is there a & logical operator in Javascript
- What does the "|" (single pipe) do in JavaScript?
- What does the operator |= do in JavaScript?
- Javascript, What does the ^ (caret) operator do?
- Using bitwise OR 0 to floor a number, How does x|0 floor the number in JavaScript?
- Why does
~1 equal -2?
- What does ~~ ("double tilde") do in Javascript?
- How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method call? (also here and here)
<< ，>> ，>>> 比特移位运营商
- What do these JavaScript bitwise operators do?
- What is the JavaScript >>> operator and how do you use it?
+ ， - 运算符
- What does = +_ mean in JavaScript, Single plus operator in javascript
- What's the significant use of unary plus and minus operators?
++ ， - 前/后增/减运算符
++, -- pre/post-increment/decrement operators
-
++someVariable vs someVariable++ in Javascript
void operator
void operator
var x =有趣ction（） vs function x（）函数声明语法
var x = function() vs function x() Function Declaration Syntax
- var functionName = function() {} vs function functionName() {}
=> 箭头函数表达式语法
- What's the meaning of "=>" (an arrow formed from equals & greater than) in JavaScript?
（function（）{...}）（） IIFE （立即调用函数表达式）
- 目的是什么？，如何调用？
- 为什么
（function（）{...}）（）; 工作但是 function（）{...}（）; 没有？
-
（功能（）{...}）（）; vs （function（）{...}（））;
- 更短的替代方案：
- What is the purpose?, How is it called?
- Why does
(function(){…})(); work but function(){…}(); doesn't?
-
(function(){…})(); vs (function(){…}());
- shorter alternatives:
-
!function(){…}(); - What does the exclamation mark do before the function?
-
+function(){…}(); - JavaScript plus sign in front of function name
- !function(){ }() vs (function(){ })(),
! vs leading semicolon
someFunction（）（） 返回其他函数的函数
- Two sets of parentheses after function call
[] ，数组（ ）数组符号
- What’s the difference between "Array()" and "[]" while declaring a JavaScript array?
- What is array literal notation in javascript and when should you use it?
/.../ - 正则表达式文字
/.../ - regular expression literals
- Meaning of javascript text between two slashes
$ 在正则表达式替换模式： $$ ， $& ， $`， $'， $ n
$ in regex replace patterns: $$, $&, $`, $', $n
- JavaScript replace() method dollar signs
{key：value} 对象文字语法：
- What do curly braces in JavaScript mean?
- Javascript object literal: what exactly is {a, b, c}?
- What do square brackets around a property name in an object literal mean?
解构：
- of function parameters: Where can I get info on the object parameter syntax for javascript functions?
- of arrays: Multiple assignment in javascript? What does [a,b,c] = [1, 2, 3]; mean?
- of objects/imports: Javascript object bracket notation ({ Navigation } =) on left side of assign
模板文字：
- What does this
`…${…}…` code from the node docs mean?
function * ， yield ， yield * 生成器功能：
- What is "function*" in JavaScript?
- What's the yield keyword in JavaScript?
- Delegated yield (yield star, yield *) in generator functions
var ，让， const 声明变量：
- What's the difference between using "let" and "var" to declare a variable in JavaScript?
- Are there constants in JavaScript?
- What is the temporal dead zone?
此关键字：
- How does the "this" keyword work?
:: 绑定运算符：
- JavaScript double colon (bind operator)
new operator
new operator
删除运算符
- What is the purpose of the delete operator in Javascript?
label：标签
- What does the JavaScript syntax foo: mean?
- What does ':' (colon) do in JavaScript?
+ = 运算符
- How does += (plus equal) work?
... iter - Spread语法/ Rest参数
...iter — Spread syntax / Rest parameters
-
(...args) => {} — What is the meaning of "...args" (three dots) in a function definition?
-
[...iter] — javascript es6 array feature [...data, 0] "spread operator"
-
{...props} — Javascript Property with three dots (...)
