1. JavaScript code should conform to Douban-jslint inspection standard
1-1. Statements must have a semicolon ending, except for, function, if, switch, try, while
1-2. Only long statements can consider breaking, such as:
Templ_songlist.replace (' {TABLE} ', da[' results '])
. replace (' {prev_num} ', PREV)
. replace (' {next_num} ', NEXT)
. replace (' {current_num} ', current)
. replace (' {total_num} ', da.page_total);
To avoid conflict with the jslint test mechanism, "." or "+" such operators put at the end of the line, the above code should read:
Templ_songlist.replace (' {TABLE} ', da[' results ']).
Replace (' {prev_num} ', PREV).
Replace (' {next_num} ', NEXT).
Replace (' {current_num} ', current).
Replace (' {total_num} ', da.page_total);
1-3. Avoid extra commas. such as: var arr = [1,2,3,];
1-4. All circulation bodies and judgments need to be enclosed in "{}". Such as:
Wrong:
if (condition)
Statement
Or
if (condition) statement;
Right:
if (condition) {
Statement Or
if (condition) {statement;}
The 1-5. For-in loop body must use the hasOwnProperty method to check whether a member is a member of its own. Avoid contamination from the prototype chain.
1-6. Variable declaration. Variable declarations should be placed at the top of the function. Avoid using undeclared variables.
Wrong:
if (n > 0) {
var isvalid = true;
Right:
var IsValid;
if (n > 0) {
IsValid = true;
}
1-7. Do not use with, void, evil.
1-8. The use of strict condition-judging characters. Use = = = instead of = =, replace!= with!==.
1-9. The following types of objects are not recommended for new constructs: New number, new String, new Boolean, new object (with {} instead), New Array (with [] instead).
1-10. Reference object members use OBJ.PROP1 instead of obj["Prop1", unless the property name is a variable.
Note: Douban-jslint is a custom jslint
Note: If you use other global variables to skip JSLint checks in the module code, you can add a declaration to the file, such as:
2. JavaScript naming rules
2-1. The first letter of the constructor is capitalized. Such as:
function Dialog (config) {
Statement
var dlg = new Dialog ({...});
2-2. The object's properties or method names are used in small hump style (lower camel-case), such as "Init", "bindevent", "updateposition":
Dialog.prototype = {
Init:function () {},
Bindevent:function () {},
Updateposition:function () {}};
2-3. The private variable name begins with an underscore. such as: "_current", "_defaultconfig"
2-4. The constant name is all uppercase and the words are separated by an underscore. such as: "Css_btn_close", "txt_loading"
2-5. Prefix of variable name:
Prefix
Element
Example
Integer
Nvariablename
I,j,k,m,n, etc. *
Integer as Counter/iterator
(For i=0 i<=oarray.length; i++)
String
Svariablename
Object
Oobjectname
Is, can, has
Boolean
[Boolean name] ConditionName
Event method
Event attachment
[Event Type]_methodname
Accessor method
Getmethodname
Accessor method
Setmethodname
Note:only a counter/iterator should use a single-letter designation.
3. Code Formatting requirements
3-1. Necessary spaces and indents in the statement
3-1-1. Use a space before and after the "()" that contains the statement, such as: If/for/while/switch (statements) {...}
3-1-2. "=" need to be preceded by a space
3-1-3. "," after the array member needs to be followed by a space
Not good:
For (t in selected) {if (!hash[t]) deselect (t)}
Good:
For (t in selected) {
if (!hash[t]) {
Deselect (t); }
3-2. Long statements using break line:
Not good:
Templ_songlist.replace (' {TABLE} ', da[' results ']). Replace (' {prev_num} ', PREV). Replace (' {next_num} ', NEXT). Replace ( ' {current_num} ', current '. Replace (' {total_num} ', da.page_total);
Good:
Templ_songlist.replace (' {TABLE} ', da[' results ']).
Replace (' {prev_num} ', PREV).
Replace (' {next_num} ', NEXT).
Replace (' {current_num} ', current).
Replace (' {total_num} ', da.page_total);
3-3. Format Object Parameters:
Not good:
embedSWF (ID, {URL: '/swf/player30792.swf?url= ' + el.href, width:261, height:30, params: {wmode: ' Transparent '}, attrib Utes: {ID: "player-sample" + I, Name: "Player-sample" + I}});
Good:
Copy Code code as follows:
embedSWF (ID, {
URL: '/swf/player30792.swf?url= ' + el.href,
width:261,
Height:30,
Params: {wmode: ' Transparent '},
Attributes: {
ID: "Player-sample" + I,
Name: "Player-sample" + I
});
