Conditional statements and loops Practices in Javascript.

Osama
3 min readApr 12, 2022

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istock

You’ll learn :

More about conditional statements if, if else and switch and get better with using them the right way, also you’ll learn when and how to chose one loop statement over others.

Conditional statements :

1/Check a number is even or odd :

2/ Find the largest between two numbers :

3/ Find the largest of three number :


// program using switch statement
let a = 2;

switch (a) {

case 1:
a = 'one';
break;
case 2:
a = 'two';
break;
default:
a = 'not found';
break;
}
// output : two
let a = 1;
switch (a) {
case "1":
a = 1;
break;
case 1:
a = 'one';
break;
case 2:
a = 'two';
break;
default:
a = 'not found';
break;
}
// output : one

4/ Simple calculator with if else :

5/ Simple calculator with switch :

Loops :

1/ Print the summation of numbers between 0 and 10 :

2/ Write a code to print numbers from 1 to 10 :

3/ print only even numbers between 0 and 20

4/ simple while loop :

all in one example :

Thanks for reading, and feel free to ask any question about javascript or about this series and i appreciate any feedback to improve My content.

find me on twitter, github and my portfolio.

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Osama

Full Stack Developer with React / Node.js and their ecosystems , as i’m developing web apps i also writing about technologies i’m using.