html去重三种方法,js总结三种方法数组去重

三种方法,js总结三种方法数组去重"/>

html去重三种方法,js总结三种方法数组去重

/* var arr=[1,2,3,3,4,4,5,5,6,1,9,3,25,4];

Array.prototype.arr1 = function()

{

var n = []; //一个新的临时数组

for(var i = 0; i < this.length; i++) //遍历当前数组

{

//如果当前数组的第i已经保存进了临时数组，那么跳过，

//否则把当前项push到临时数组里面

if (n.indexOf(this[i]) == -1){

n.push(this[i]);

}

}

return n;

};

var newArr2=arr.arr1(arr);

alert(newArr2); //输出1,2,3,4,5,6,9,25*/

/*function unique(arr){

var newArr = [arr[0]];

for(var i=1;i

if(newArr.indexOf(arr[i]) == -1){

newArr.push(arr[i]);

}

}

return newArr;

}

alert(unique([112,112,34,'你好',112,112,34,'你好','str','str1']))*/

/*var ary=[1,2,3,3,2,3,4,5];

var ary1=[];

for(var i=0;i

if(ary1.indexOf(ary[i])==-1){

ary1.push(ary[i]);

}

}

alert(ary1);*/

/*var ary=[1,2,3,3,2,3,4,5];

for(var i=0;i

for(var j=i+1;j

if(ary[i]===ary[j]){

ary.splice(i,1);

i--;

}

}

}

alert(ary);*/

/*var ary=[1,2,3,3,2,3,4,5];

ary.sort(function(a,b){return a-b;});

for(var i=0;i

if(ary[i]===ary[i+1]){

ary.splice(i,1);

i--;

}

}

alert(ary);*/

var a=[9,2,33,66,55,56,34,1,91,88];

for(var i=0;i

for(var j = i + 1;j

if(a[i]>a[j]){

var tmp = a[i];

a[i] = a[j];

a[j] = tmp;

}

}

}

console.warn(a);