Objects in JavaScript
const person = {firstName:"John", lastName:"Doe", age:50, eyeColor:"blue"};
Objects in JavaScript
const person = {firstName:"John", lastName:"Doe", age:50, eyeColor:"blue"};
object inside object javascript
var obj = {
prop1: 5,
obj2: {
prop1: [3, 6, 3],
prop2: 74,
prop3: {
str: "Hello World"
}
}
};
console.log(obj.obj2.prop3.str); //output: "Hello World"
object object javascript
person = {
'name':'john smith'
'age':41
};
console.log(person);
//this will return [object Object]
//use
console.log(JSON.stringify(person));
//instead
objects in javascript
let car = {
engineNumber: 1234
brand: 'BMW',
break: function (){}
}
how to create object js
function person(fname, lname, age, eyecolor){
this.firstname = fname;
this.lastname = lname;
this.age = age;
this.eyecolor = eyecolor;
}
myFather = new person("John", "Doe", 50, "blue");
document.write(myFather.firstname + " is " + myFather.age + " years old.");
js objects
// To make an object literal:
const dog = {
name: "Rusty",
breed: "unknown",
isAlive: false,
age: 7
}
// All keys will be turned into strings!
// To retrieve a value:
dog.age; //7
dog["age"]; //7
//updating values
dog.breed = "mutt";
dog["age"] = 8;
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