javascript数字数组去重复项的实现代码

test.htm

复制代码 代码如下:

Watch.js

复制代码 代码如下:

var Watch = {
result: [],
guid: -1,
totalTime: 0,
start: function(title){
this.result[++this.guid] = [title || this.guid, new Date().getTime()];
},
stop: function(){
var r = this.result[this.guid];
var t = new Date().getTime() - r[1];
this.totalTime += t;
r[1] = t;
if(t>=10000){
alert("This code takes too long to run,you should optimizate them.");
}
},
report: function(parent){
var div = document.createElement("div");
div.style.fontSize = "12px";
var str = [];
str.push("

The total times:" + this.totalTime + " ms.

");
for (var i = 0, l = this.result.length; i < l; i++) {
if (this.result[i].length > 1) {
str.push("

" + ""+""+this.result[i][1]+""+" " + this.result[i][0] + "" + "

");
}else{
str.push(this.result[i][0]);
}
}
div.innerHTML = str.join("");
parent = parent || document.body;
parent.appendChild(div);
div = null;

this.totalTime = 0;
this.guid = -1;
this.result=[];
},
fns: function(){
var a = arguments;
for (var i = 0, l = a.length; i < l; i++) {
this.start(a[i][0]);
a[i][1]();
this.stop();
}
},
execByTimes: function(fn, times, title){
this.start(title);
while (times--) {
fn();
}
this.stop();
},
print: function(str){
this.result[++this.guid]=[str];
}
}