javascript js

Question 1

if you made an id is name is hello and you did like this

hello.innerHTML = “Hello”;
will you get Hello in the page?

Answer 1

True

Question 2

console.log(2 ** 4);

Answer 2

16

Question 3

console.log(11 %5)

Answer 3

1 باقي القسمه

Question 4

console.log(Number(“100”));

Answer 4

100 بتحول اي حاجه لرقم

Question 5

console.log(100..toString());

Answer 5

بيحول اي حاجه لstring
100

Question 5

console.log(100.5555.toFixed(2));

Answer 5

بيقرب مرتبتين
100.56

Question 6

console.log(parseFloat(“100.500”));

Answer 6

بيجول ال string ل float

100.5

Question 7

console.log(parseInt(“100.500”));

Answer 7

بيحول ال string ل int
100

Question 8

console.log(Math.round(99.2));

Answer 8

بيقرب

99

Question 9

console.log(Math.floor(99.9));

Answer 9

بينزل الرقم

Question 10

console.log(Math.ceil(99.1));

Answer 10

بيقرب لاقصى حاجه

100

Question 11

console.log(Math.min(10,25,-11));

Answer 11

بيدور على الاقدم

-11

Question 12

console.log(Math.max(25,10,-11));

Answer 12

بيدور على الاكبر

25

Question 13

console.log(Math.pow(2,4));

Answer 13

اثنين اس اربعه
16

Question 14

console.log(Math.trunc(99.5));

Answer 14

بيشيل الكسور

Question 15

let Name = Ahmed;
console.log(Name[1])

Answer 15

h

Question 16

let Name = Ahmed;
console.log(Name.charAt(1))

Answer 16

h

Question 17

let Name = Ahmed;
console.log(Name.length());

Answer 17

5

Question 18

let Name = Ahmed;
console.log(Name.toUpperCase());

Answer 18

AHMAD

Question 19

let Name = Ahmed;
console.log(Name.toLowerCase());

Answer 19

ahmad

Question 20

let Name = Ahmed;
console.log(Name.trim());

Answer 20

بيشيل ال space

Question 21

let a = “Elzero web school”;
console.log(a.indexof(“web”));

Answer 21

بيدور على اول حاجه w

7

Question 22

let a = “Elzero web school”;
console.log(a.lastIndexof(“web”))

Answer 22

7

Question 23

let a = “Elzero web school”;
console.log(a.slice(2,6))

Answer 23

بيحسب من 2 و بيقطع من قبل الاخير

zero

Question 24

-let a = "Elzero web school"; console.log(a.split("")) let a = "Elzero web school"; console.log(a.split(" ",2))

Answer 24

هيجبلك كل الحروف- -عنصرين بس و هيقطع كل ال spze Elzero ,web

Question 25

let a = "Elzero web school"; console.log(a.subString(2,6))

Answer 25

نفس ال slice zero

Question 26

let a = "Elzero web school"; console.log(a.subString(-10,6))

Answer 26

بيبدا من الصفر لو سالب Elzero

Question 27

let a = "Elzero web school"; console.log(a.subStr(0,6))

Answer 27

0 البدايه 6 عدد العناصر Elzero

Question 28

let a = "Elzero web school"; console.log(a.slice(2,6))

Question 29

let a = "Elzero web school"; console.log(a.includes("web"))

Answer 29

true

Question 30

let a = "Elzero web school"; console.log(a.includes("web",8))

Answer 30

في 8 هل في web كامله false

Question 31

Boolean("")

Answer 31

false

Question 32

let myfriends = ["mohammed" ,"bruh","bigger",["whatdog","nah"]] console.log(`${myfriends[3][1][2]}`);

Answer 32

بيدور على ال array و بعد كدهبيدور على اللي جواه و بعد كده بيدور على اللى جواه a

Question 33

let myfriends = ["mohammed" ,"bruh","bigger","whatdog","nah"] myfriends[myfriends.length] = "niggates"; console.log(`${myfriends}`);

Answer 33

it adds alot anther one to it "mohammed" ,"bruh","bigger","whatdog","nah",niggates

Question 34

let myfriends = ["mohammed" ,"bruh","bigger","whatdog","nah"] myfriends[myfriends.length -1] = "niggates"; console.log(`${myfriends}`);

Answer 34

it will take the last one mohammed" ,"bruh","bigger","whatdog",niggates

Question 35

/* Arrays Methods [Adding And Removing] - unshift("", "") Add Element To The First - push("", "") Add Element To The End - shift() Remove First Element From Array - pop() Remove Last Element From Array */ let myFriends = ["Ahmed", "Mohamed", "Sayed", "Alaa"]; console.log(myFriends); myFriends.unshift("Osama", "Nabil"); console.log(myFriends); myFriends.push("Samah", "Eman"); console.log(myFriends); let first = myFriends.shift(); console.log(myFriends); console.log(`First Name Is ${first}`); let last = myFriends.pop(); console.log(myFriends); console.log(`Last Name Is ${last}`);

Answer 35

/* Arrays Methods [Adding And Removing] - unshift("", "") Add Element To The First - push("", "") Add Element To The End - shift() Remove First Element From Array - pop() Remove Last Element From Array */

Question 36

console.log(myfriends.sort());

Answer 36

بيرتب من الاضغر للاكبر

Question 37

console.log(myfriends.reverse());

Answer 37

بيعكس

Question 38

break

Answer 38

بيقطع

Question 39

continue

Answer 39

بيشيل و بيكمل