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title: 如何让你的JavaScript代码更加语义化 categories:

• 前端杂烩 tags:
• tech
• cnblogs date: 2014-08-20 11:07:00 fromUrl: http://www.cnblogs.com/hustskyking/archive/2014/08/20/javascript-semantization.html from: 博客园

// 数据类型判断
if(Object.prototype.toString.call(str) === "[object String]"){
    // doSomething();
}；

// 文件类型判断
if(/.*\.css(?=\?|$)/.test(\/path/to/main.css")){
    // doSomething();
}

var Queue = ["test1", "test2", "test3"];
// 常见方式
Queue.length = 0;
Queue = [];

// 注册
var repos = {};

repos["a"] = {
   name: "a",
   content: {}
};

repos["b"] = {
   name: "b",
   content: {}
};

// 类型判断
function isType(type){
    return function(o){
        return Object.prototype.toString.call(o) === '[object ' + type + ']';
    }
}

var isString = isType("String");
var isObject = isType("Object");
var isArray = isType("Array");

isString("I'm Barret Lee.");
isArray([1,2,3])；
isObject({});

if(Object.prototype.toString.call(str) === "[object String]"){
    // code here...
}

// 提取常量
var isCss = /.*\.css(?=\?|$)/;
isCss.test("/path/to/main.css");

var Queue = ["test1", "test2", "test3"];
Queue.splice(0, Queue.length);

Queue.splice(2, 4); // 删除从索引为 2，往后的 4 个元素

// 注册
var repos = [];

function register(o){
   repos[o.name] = o;
}

register({
  name: "a",
  content: {}
});

repos["a"] = {
   name: "a",
   content: {}
};