I am wondering if it is possible to have an object with some attributes for example:
object name: Human
this.age = 8
this.name = "Steve"
Then have an array of strings which contain each attribute to that object such as:
manAttributes = ["age","name"]
So therefore if i wrote
console.log(Human.manAttributes[0])
The console should log '8' But this doesn't work, I get unexpected string.
Thanks
An object is a key:value pair. The key and value are separated by a : (colon). In your case, you have separated by =. Change your code as below:
var Human = {
manAttributes: ["age","name"],
age: 8
};
alert(Human[Human.manAttributes[0]]); //alerts 8
This solution considers manAttributes as a property of Human object. If manAttributes is a separate array outside the Human object, then,
var manAttributes = ["age","name"];
var Human = {
age: 8
};
alert(Human[manAttributes[0]]); //alerts 8
Object properties can be accessed through either dot notation or bracket notation (see Mozilla's JavaScript reference).
So, this will output what you want:
console.log(Human[manAttributes[0]]);
You'd be needing:
Human[manAttributes[0]]
The [] syntax being the way of accessing a property by (variable) name rather than by constant literal token.
function Human(age,name) {
this.age = age;
this.name = name;
}
var self = new Human(8,'Steve');
var humanProperties = Object.getOwnPropertyNames(self);
console.log(self[humanProperties[0]])
if you are looking at iterating through the properties, i would suggest the following approach.
var human = {
name: "Smith",
age: "29"
};
var manAttributes = ["age","name"];
for(var prop in manAttributes){
if(human.hasOwnProperty(manAttributes[prop])){
console.log(human[manAttributes[prop]]);
}
}
