判断js中的类型:

alert(Object.prototype.toString.apply([1,2]));    //"[object Array]"alert(Object.prototype.toString.apply('str'));    //"[object String]"alert(Object.prototype.toString.apply(1));       //"[object Number]"alert(Object.prototype.toString.apply(null));     //"[object Null]"alert(Object.prototype.toString.apply());         //"[object Undefined]"alert(Object.prototype.toString.apply(function(){}));      //"[object Function]"alert(Object.prototype.toString.apply(true))     //"[object Boolean]"alert(Object.prototype.toString.apply(new Object()));     //"[object Object]"

function aa(){

console.log("aa测试用例");

}

var b={};

//aa.call(b); //相当于b.aa(),将aa()方法赋给b调用。

aa.apply(b); //相当于b.aa(),将aa()方法赋给b调用。

 

 

patientsDirection = [{ name: '入病房', clickstatus: false }, { name: '走廊', clickstatus: false },

{ name: '补液室', clickstatus: false }, { name: '手术室', clickstatus: false },

{ name: 'DSA室', clickstatus: false }, { name: '入ICU', clickstatus: false },

{ name: '自动离院', clickstatus: false }, { name: '好转离院', clickstatus: false },

{ name: '死亡', clickstatus: false }, { name: '转院', clickstatus: false },

{ name: '诊室', clickstatus: false }, { name: '留观', clickstatus: false }];

console.log(typeof patientsDirection,patientsDirection instanceof Array,Object.prototype.toString.call(patientsDirection)==="[object Array]");

console.log(typeof(Object.prototype.toString.apply([1,2])));