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EXERCESES FROM 1-6 #1

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EXERCESES FROM 1-6 #1

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94 changes: 94 additions & 0 deletions app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,3 +2,97 @@ console.log("Hello World!\n==========\n");

// Exercise 1 Section
console.log("EXERCISE 1:\n==========\n");

function plus (number){
return function (plusNumber) {
return number+plusNumber ;
};

}
plus(10);
let add10=plus(10);
let add2=plus(2)
console.log(add10(100));
console.log(add2(100));



console.log("EXERCISE 2:\n==========\n");
let users = [
{
name: "Frodo",
age: 50,
score: 85,
isActive: false,
},
{
name: "Sam",
age: 38,
score: 94,
isActive: true,
},
{
name: "Merry",
age: 36,
score: 82,
isActive: true,
},
{
name: "Pippin",
age: 26,
score: 77,
isActive: false,
},
];
// console.log(Object.entries(users));
// console.log(Object.keys(users));
// console.log(Object.values(users));
function logName(user)
{
console.log(user.name);
}

users.forEach(logName);
// inline arroe
// users.forEach((user)=> )
console.log("EXERCISE 3:\n==========\n");
function trimUser(user)
{
return {
name:user.name,
score:user.score,
};
}
let userScore=users.map(trimUser);
console.log(userScore);

console.log("EXERCISE 4 :\n==========\n");

function active(user){
return user.isActive===true;
}

let activeUsers=users.filter(active);
console.log(activeUsers);

// let filteredUsers =users.filter((user)=>user.isActive);

console.log("EXERCISE 5:\n==========\n");
function sortDesc(userA,userB)
{
if (userA.score <userB.score){
return 1;
}else {
return -1;
}
}
users.sort(sortDesc);
console.log(users);
console.log("EXERCISE 6:\n==========\n");
function reduceSum(sum, user) {
return sum + user.score;
}

let sumScores = users.reduce(reduceSum, 0);

console.log(`Avg user score: ${sumScores / users.length}`);