JavaScript Encoding Specification Collection

Use of JS semicolon

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Naming conventions

1. Variable Naming conventions:
Use meaningful words and hump-style naming, temporary variables such as: Str,num,arr, loop variable write: i,j,k

2. Global variable naming specification:
Global variables use g as a prefix, such as Glotintime

3. Constant naming conventions:
Use all uppercase, such as: CO

4. Function name naming specification:
A. Unify the use of verbs in the form of nouns, such as: GetVersion ()
B. Words that involve a return value, such as Is,has, which can be used to represent logic, and an inner function preceded by a ' _ ' prefix
C. Optional parameters start with ' opt '

5. Naming the class:
Capitalize first letter
attribute is not a noun with a certain meaning, private attribute plus ' _ '
Method name is a meaningful verb + name, first letter lowercase, private method plus ' _ '

6. Other:

Name in English, without pinyin
Loop variables are defined in the loop

Object

Create an object with literal values

// not good var New Object (); // Good var item = {};

Do not use reserved words as keys

// not good var superman = {    class: ' Superhero ',    default: {clark: ' Kent '},     Privatetrue}// good var superman = {    Klass : ' Superhero ',    defaults: {clark: ' Kent '},    hiddentrue};

Array

Create an array with literal amounts

// Good var New Array (); // not good var items = [];

Function

Do not declare a function in a non-function block, you should assign that function to a variable.

// not good if (currentUser) {    function  Test () {        console.log (' Nope. ') );    }} // Good if (currentUser) {    varfunction  Test () {        console.log (' Yup. ') );    };}

Do not name the parameter arguments, which will have an effect on the arguments object within the function

JavaScript Encoding Specification Collection