Array.prototype.removeDuplicate = function(){
var n = [];
for(var i=0;i<this.length;i++){
if(n.indexOf(this[i]) == -1 ){
n.push(this[i]);
}
}
return n;
}
var m = arr.removeDuplicate();
console.log(m);//[1, 2, 3, "我", 34, "我的", NaN, NaN]
Array.prototype.removeDuplicate = function(){
var n = [];
for(var i=0;i<this.length-1;i++){
if(this.indexOf(this[i]) == i){
n.push(this[i]);
}
}
return n;
}
var m = arr.removeDuplicate();
console.log(m);//[1, 2, 3, "我", 34, "我的"]
Array.prototype.removeDuplicate = function(){
var n = [],m = {};
for(var i=0;i<this.length;i++){
if(!m[this[i]]){
m[this[i]] = true;
n.push(this[i]);
}
}
return n;
}
var m = arr.removeDuplicate();
console.log(m);//[1, 2, 3, "我", 34, "我的", NaN]
Array.prototype.removeDuplicate = function(){
var n = [];
this.sort();
for(var i=0;i<this.length;i++){
if(this[i] != this[i+1]){
n.push(this[i]);
}
}
return n;
}
var m = arr.removeDuplicate();
console.log(m);//[1, 2, 3, 34, NaN, NaN, "我", "我的"]
Array.prototype.removeDuplicate = function(){
return (Array.from(new Set(this)));
}
var m = arr.removeDuplicate();
console.log(m);//[1, 2, 3, "我", 34, "我的", NaN]
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