JavaScript编写可维护的代码

4个空格缩进，最好统一tab为4个字符。

结尾分号

//原始代码function getData() {
 return 
 {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas"
 }//分析器会它理解function getData() {
 return;
 {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas"
 };
}

//这段代码工作正常，尽管没有用分号function getData() {
 return {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas
 }
}

80个字符

通常我们会在运算符后换行，下一行会增加两个层级的缩进（8个字符）

var result = something + antherThing + yetAnotherThing + somethingElse + 
 anotherSomethingElse;

4个空格缩进，最好统一tab为4个字符。

结尾分号

//原始代码function getData() {
 return 
 {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas"
 }//分析器会它理解function getData() {
 return;
 {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas"
 };
}

//这段代码工作正常，尽管没有用分号function getData() {
 return {
 title:"Maintainable JavaScript",
 author:"Nicholas C. Zakas
 }
}

80个字符

通常我们会在运算符后换行，下一行会增加两个层级的缩进（8个字符）

var result = something + antherThing + yetAnotherThing + somethingElse + 
 anotherSomethingElse;