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161 lines (90 loc) · 3.32 KB
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// Question 1 - What is the output
/*const obj = {
a: "one",
b: "two",
a: "three"
}
console.log(obj); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 2 => Create a Function multiplyByTwo(obj) that multiplies all numeric property values of nums by 2.
/*let nums = {
a: 100,
b: 200,
title: "My Nums",
}
multiplyByTwo(nums)
function multiplyByTwo(obj) {
for (key in obj) {
if (typeof obj[key] === "number") {
obj[key] *= 2;
}
}
}
console.log(nums); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 3 => What is the output of following code
/* const a = {}
const b = {key: "b"}
const c = { key: "c" }
a[b] = 123;
a[c] = 456;
console.log(a[b]); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 4 => What is JSON.stringify and JSON.parse?
/* const user = {
name: "Bhavya",
age: 24
}
const strObj = JSON.stringify(user);
console.log(strObj);
localStorage.setItem("test", strObj)
console.log(JSON.parse(strObj)); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 5 => What is the output?
// console.log([..."Alwar"]);
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 6 => What is the output?
/*const user = { name: "Bhavya", age: 24 };
const admin = { admin: true, ...user }
console.log(admin); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 7 => What is the output?
/* const settings = {
name: "Bhavya",
level: 19,
health: 90,
}
const data = JSON.stringify(settings, ["level", "health"])
console.log(data); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 8 => What is the output?
/* const shape = {
radius: 10,
diameter() {
return this.radius * 2;
},
perimeter: () => 2 * Math.PI * this.radius,
};
console.log(shape.diameter());
console.log(shape.perimeter()); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 9 => What is the destructuring in JavaScript?
/* let user = {
name: "Bhavya",
age: 24,
fullName: {
first: "Alex",
last: "jones",
},
}
const name = user
const {fullName: {first} } = user
console.log(first); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */
// Question - 10 => What is the output?
/* let c = { greeting: "Hey!" };
let d;
d = c;
c.greeting = "Hello";
console.log(d.greeting); */
/* ------------------------------------------------------------------------------------------------------------------------------------ */