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task Variables-and-Operators #17

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d7a04a5
task Variables-and-Operators
mohamedali0122 Feb 7, 2024
d0af34a
done task opration
mohamedali0122 Feb 8, 2024
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21 changes: 21 additions & 0 deletions arthimetic-operators.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,15 @@ Task 1:
7. Use console.log() to print the value of variable e to the console. (it should result 102.000)
*******************************************************************************/
// TODO: ADD YOUR CODE BELOW
let a =4+6;
let b =10*5;
let c =17%3;
let d =b-a;
let e =a+b+c+d;

console.log(e);



/*******************************************************************************
Task 2:
Expand All @@ -28,3 +37,15 @@ Task 1:
5. Divide two numbers and round the result to the nearest integer before logging it to the console.
*******************************************************************************/
// TODO: ADD YOUR CODE BELOW

console.log(10-5);
console.log(3*5*7*9);
let h=3;
let w=5;
let l=7;
console.log(h*w*l);

let value = 9.99 - 0.20;
console.log(value);
console.log(24 % 3);

5 changes: 4 additions & 1 deletion index.html
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Expand Up @@ -7,7 +7,10 @@
<title>Variables and Operators</title>
</head>
<body>
<script src="./variables.js"></script>
<script src="arthimetic-operators.js"></script>
<script src="variables.js"></script>
<script src="logical-comaprison-operators.js"></script>

<!-- <script src="./arthimetic-operators.js"></script> -->
<!-- <script src="./logical-comaprison-operators.js"></script> -->
</body>
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48 changes: 26 additions & 22 deletions logical-comaprison-operators.js
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Expand Up @@ -6,35 +6,34 @@ TASK 1:
// Have fun! // 😃
********************************************************************************/

const exp1 = 10 >= 10; // TODO: ADD YOUR EVALUATION HERE -->
const exp1 = 10 >= 10; // TODO: ADD YOUR EVALUATION HERE -->true

const exp2 = "dog" == "dog"; // TODO: ADD YOUR EVALUATION HERE -->
const exp2 = "dog" == "dog"; // TODO: ADD YOUR EVALUATION HERE -->true

const exp3 = true != false; // TODO: ADD YOUR EVALUATION HERE -->
const exp3 = true != false; // TODO: ADD YOUR EVALUATION HERE -->true

const exp4 = "10" === 10; // TODO: ADD YOUR EVALUATION HERE -->
const exp4 = "10" === 10; // TODO: ADD YOUR EVALUATION HERE -->false

const exp5 = 5 > 4; // TODO: ADD YOUR EVALUATION HERE -->
const exp5 = 5 > 4; // TODO: ADD YOUR EVALUATION HERE -->true

const exp6 = null == undefined; // TODO: ADD YOUR EVALUATION HERE -->
const exp6 = null == undefined; // TODO: ADD YOUR EVALUATION HERE -->true

const exp7 = "true" == true; // TODO: ADD YOUR EVALUATION HERE -->
const exp7 = "true" == true; // TODO: ADD YOUR EVALUATION HERE -->true

@AlhassanAli01 AlhassanAli01 Feb 9, 2024 •
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"true" is a string value and true is a boolean value, they do not equal the same thing, therefore this should evaluate to false


const exp8 = "false" == false; // TODO: ADD YOUR EVALUATION HERE -->
const exp8 = "false" == false; // TODO: ADD YOUR EVALUATION HERE -->true

@AlhassanAli01 AlhassanAli01 Feb 9, 2024

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Same goes here, they're two different types, this should be false.


const exp9 = NaN === NaN; // TODO: ADD YOUR EVALUATION HERE -->
const exp9 = NaN === NaN; // TODO: ADD YOUR EVALUATION HERE -->true
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const exp10 = !false || false; // TODO: ADD YOUR EVALUATION HERE -->
const exp10 = !false || false; // TODO: ADD YOUR EVALUATION HERE -->true

const exp11 = false && !false; // TODO: ADD YOUR EVALUATION HERE -->
const exp11 = false && !false; // TODO: ADD YOUR EVALUATION HERE -->false

const exp12 = "apple" > "pineapple"; // TODO: ADD YOUR EVALUATION HERE -->
const exp12 = "apple" > "pineapple"; // TODO: ADD YOUR EVALUATION HERE -->false

const exp13 = "2" > "12"; // TODO: ADD YOUR EVALUATION HERE -->
const exp13 = "2" > "12"; // TODO: ADD YOUR EVALUATION HERE -->true
const exp14 = undefined == null; // TODO: ADD YOUR EVALUATION HERE -->true

const exp14 = undefined == null; // TODO: ADD YOUR EVALUATION HERE -->

const exp15 = undefined === null; // TODO: ADD YOUR EVALUATION HERE -->
const exp15 = undefined === null; // TODO: ADD YOUR EVALUATION HERE -->false

/*******************************************************************************
Task 2:
Expand All @@ -47,33 +46,38 @@ const isHappy = false;

// - Check if num is between 10 and 20 (inclusive) using the logical AND operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log(num >=10 && num <=20);
// - Check if num is either less than 5 or greater than 50 using the logical OR operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log(num >=5 || num <=50 );
// - Check if str is either "apple" or "orange" using the logical OR operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW
console.log(str == "apple" || str == "orange");

// - Check if isHappy value is true using the logical NOT operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW
console.log(isHappy == !isHappy);

// - Check if num is even and greater than 10 using the logical AND operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW
console.log(num / 2 == 0 && num > 10);

@AlhassanAli01 AlhassanAli01 Feb 9, 2024

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Use the mod operator % to check for the remainder instead of the division operator /.


// - Check if num is divisible by both 3 and 5 using the logical OR operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW
console.log(num / 3 ==0 || num / 5 == 0 )

@AlhassanAli01 AlhassanAli01 Feb 9, 2024

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The division operator / will only return the result, not the remainder, here we're supposed to check if the number is divisible using the mod operator % and then comparing the remainder.


// - Check if str contains the letter "e". Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log(str.includes("e"))
// - Check if str starts with "Hakuna". Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log( str.startsWith("Hakuna"))
// - Check if str ends with "a". Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log(str.endsWith("a"))
// - Check if num is either negative or odd using the logical OR operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW

console.log(num /2 == 1 || num < 0)

@AlhassanAli01 AlhassanAli01 Feb 9, 2024

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Use the mod operator % to check for the remainder instead of the division operator /.

// - Check if the length of str is greater than num or equal to 40 using logical OR operator. Log the result to the console.
// TODO: ADD YOUR CODE BELOW
console.log(str.length > num || str.length ==40)
16 changes: 16 additions & 0 deletions variables.js
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Expand Up @@ -15,6 +15,13 @@
2. Use console.log() to output the value of each variable.
********************************************************************************/
// TODO: ADD YOUR CODE BELOW
let personName ="mohamed ali";
let age =24;
let isHappy = true;

console.log(personName);
console.log(age);
console.log(isHappy);

/*******************************************************************************
Task 2 (Reassigning variables):
Expand All @@ -25,6 +32,9 @@
*******************************************************************************/
// TODO: ADD YOUR CODE BELOW

let nickName = personName;
console.log(nickName);

/*******************************************************************************
Task 3 (Naming variables):

Expand All @@ -34,6 +44,9 @@
*******************************************************************************/
// TODO: ADD YOUR CODE BELOW

let myFilm ="johan waek";
let myAge =34;
console.log(`my best film is ${myFilm}, and my age ${myAge}`);
/*******************************************************************************
Task 4 (String Concatenation):
Build upon the previous task by completing the following steps:
Expand All @@ -48,3 +61,6 @@ Steps:
- Print the final message to the console, including the personName in uppercase in this format `Dear personName_VALUE, here's your message: finalMsg_VALUE.`.
*******************************************************************************/
// TODO: ADD YOUR CODE BELOW
let msg =prompt(" Why are you happy?");
let final_message=`${msg} And btw, Why are you happy?`;
console.log(`Dear ${final_message}, here's your message: ${personName.toUpperCase()}`);