function CreateObj( uName, uAge ) {
this.userName = uName;
this.userAge = uAge;
}
CreateObj.prototype.showUserName = function () {
return this.userName;
}
CreateObj.prototype.showUserAge = function () {
return this.userAge;
}
CreateObj.prototype = {
showUserAge : function(){
return this.userAge;
},
showUserName : function(){
return this.userName;
},
}
var obj1 = new CreateObj( 'ghostwu', 22 );
var obj2 = new CreateObj( '卫庄', 24 );
console.log( obj1.showUserName(), obj1.showUserAge() ); //ghostwu 22
console.log( obj2.showUserName(), obj2.showUserAge() ); //卫庄 24
function CreateObj( uName, uAge ) {
this.userName = uName;
this.userAge = uAge;
}
CreateObj.prototype.showUserName = function () {
return this.userName;
}
CreateObj.prototype.showUserAge = function () {
return this.userAge;
}
console.log( CreateObj.prototype.constructor === CreateObj ); //true
CreateObj.prototype = {
showUserAge : function(){
return this.userAge;
},
showUserName : function(){
return this.userName;
},
}
console.log( CreateObj.prototype.constructor === CreateObj ); //false
console.log( CreateObj.prototype.constructor === Object ); //true
function CreateObj( uName, uAge ) {
this.userName = uName;
this.userAge = uAge;
}
var obj1 = new CreateObj( 'ghostwu', 22 );
CreateObj.prototype.showUserName = function(){
return this.userName;
}
console.log( obj1.showUserName() ); //ghostwu
function CreateObj( uName, uAge ) {
this.userName = uName;
this.userAge = uAge;
}
var obj1 = new CreateObj( 'ghostwu', 22 );
CreateObj.prototype = {
showUserName : function(){
return this.userName;
}
}
console.log( obj1.showUserName() ); //报错
function CreateObj(){}
CreateObj.prototype = {
name : 'ghostwu',
skills : [ 'php', 'javascript', 'linux' ]
};
var obj1 = new CreateObj();
obj1.skills.push( 'python' );
var obj2 = new CreateObj();
console.log( obj2.skills ); //'php', 'javascript', 'linux', 'python'
Array.prototype.unique = function(){
var res = [];
for( var i = 0, len = this.length; i < len; i++ ){
if( res.indexOf( this[i] ) == -1 ) {
res.push( this[i] );
}
}
return res;
}
var arr = [ 10, 20, 30, 20, 30, 20, 40, 20 ];
console.log( arr.unique() ); //10, 20, 30, 40
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