I have made my custom object and I want to add a method into. I want to uppercase my values. But it is giving me [object object].Any idea how to get it done. fiddle
function checkObj (name,title,salary){
this.name= name;
this.title= title;
this.salary= salary;
}
var woo=new checkObj("rajora","this is a test",2000);
checkObj.prototype.inc=function (){
for(i=0;i<this.length;i++){
this[i]= this[i].toUpperCase();
}
};
woo.inc();
console.log(woo)
You just have to change your inc function like this
checkObj.prototype.inc = function() {
for (var key in this) {
if (this.hasOwnProperty(key)) {
if (typeof this[key] === 'string') {
this[key] = this[key].toUpperCase();
}
}
}
};
and this gives me the following output
{ name: 'RAJORA', title: 'THIS IS A TEST', salary: 2000 }
When you call console.log() and pass it an object like woo, it uses woo.toString() to get the string representation of it and print it.
woo inherits toString() from Object.prototype which by default prints the string you are getting, i.e. [object object].
You have to override toString() like this:
checkObj.prototype.toString = function() {
var result = "checkObj {";
for (var prop in this) {
if (this.hasOwnProperty(prop))
result += (prop + " : " + String(this[prop]).toUpperCase() + ", ");
}
result += ("}");
return result;
}
Now you can just console.log(woo) and it would work as expected.
prop is variable that would hold the name of each property on woo as it loops on it.Demo here.
js code like this :
function checkObj (name,title,salary){
this.name= name;
this.title= title;
this.salary= salary;
}
checkObj.prototype.inc=function(){
var self=this;
for(var i in self){
if(self.hasOwnProperty(i)){
output(i);
}
}
function output(item){
if(typeof self[item]==='string'){
self[item]=self[item].toUpperCase();
console.log(self[item]);
}
}
};
Is helpful for you ?
console.log(woo)?wooit's your objectconsole.log(JSON.stringify(woo))(in your case)