can object define property to use own method?
litk this
obj = {
prt:function(){console.log("HELLO")}
prt0:obj.prt()
}
I want obj.prt0 -> "HELLO"
Add a comment
|
2 Answers
var obj = {
prt:function(){
console.log("HELLO")
return "HELLO";
},
prt0: function(){
this.prt()
}
}
obj.prt0; //do nothing, it is only a method
obj.prt0(); //execute method, will print Hello
2 Comments
HelloRacoon
i don't wanna use another methods. Isn't there any way to use only property? and why property cant approach own methods? even use this.method
Jian Zhong
That depends on what you want to achieve. Because the prt is a function, and it can accept params, you need type () after the function name. If you only want a value, you can use a attribute, like var obj = { prt: 'HELLO'} the use obj.prt, BTW, call a function is simple and clear. why don't you want to use it, you
If you want obj.prt0 to have the value of "HELLO", then you're going about it the right way - use this to make it easier, and make sure you return from the function. Also you need to define prt0 after the object is created:
let obj = {
prt: function() {
console.log("HELLO");
return "HELLO";
}
};
obj.prt0 = obj.prt();
console.log(obj.prt0);The above does call obj.prt to create the value. If you want prt0 to be a reference to prt - so if you call prt0 it calls prt, you can just do this:
let obj = {
prt: function() {
console.log("HELLO");
return "HELLO";
}
};
obj.prt0 = obj.prt;
console.log(obj.prt0());The above will also call console.log("HELLO") twice.