📝_ While _Loop in JavaScript
🧠 What is a While Loop?
👉 A while loop is use a repeat same console output show .
👉 A long condition is true only show outout.
Syntax
while (condition) {
// code to run
}
- Same value in repect in again
Explain:
-> 1 variable Declaration & initalization
-> Set a while loop condition
-> print statement console.log("1")
-> " " always print same value because string value no change
-> a++ increase value
-> { } Curly brackets inset process in all loop.
- Basic Example 1 2 3 4 5
change: console.log
frist program console in string this program console condition
Explain:
-> This also same but different for print statement
-> console.log (a) - variable name = a
-> a print changing value. variable value change.
- Reverse Loop
Explain:
-> This also same but change variable value ,loop value & ...
-> 10 variable Declaration & initalization
-> Set a while loop condition 1
-> top & bottom.
-> print statement console.log(a)
-> a print change values
-> a-- decrease value minus a values
Odd Number Example
Even Numbers Example
Explain:
-> 1 variable Declaration & initalization
-> Set a while loop condition
-> small Diffent while loop inset if condition
-> if condition checktrue go inside , false not allowed inside
-> % Modulus
-> i modulus 2 == 0
-> i divide 2 remainder value 0 true that is even
-> i modulus 2 != 0 != change oppsite value odd.
-> print statement console.log("1")
-> " " always print same value because string value no change
-> a++ increase value
*Multiples of 3 and 5 *
% → remainder
== 0 → divisible
&& → both conditions
% → gives remainder
a % 3 == 0 → divisible by 3
a % 5 == 0 → divisible by 5
&& → BOTH conditions must be true
Explain:
-> 1 variable Declaration & initalization
-> Set a while loop condition
-> if condition
-> modulus two condition true only give output because && (and) Logical operation.
-> print statement console.log("1")
-> " " always print same value because string value no change
-> a++ increase value
- “Print numbers from 1 to 100
- that are NOT multiples of 3 and NOT multiples of 5”
Meaning:
- i % 3 != 0 → NOT divisible by 3
- i % 5 != 0 → NOT divisible by 5
- && → both must be true
Multiples 3 or 5
OR is a 3 or 5 Decimal values
Explain:
-> 1 variable Declaration & initalization
-> Set a while loop condition
-> if condition
-> modulus two condition true only give output because ||(or) Logical operation.
-> print statement console.log("1")
-> " " always print same value because string value no change
-> a++ increase value
Divisors of given number
Meaning
if 20 divsible by i
then i is a factor
Meaning
if i divsible by 20
then 20 is a factor
Count of Diviors of given number
Explain:
-> three variables n,i,count.
-> Set a while loop condition
-> if condition checktrue go inside , false not allowed inside
-> % Modulus
-> i modulus 2 == 0
-> i divide 2 remainder value 0 true that is even
-> i modulus 2 != 0 != change oppsite value odd.
-> print statement console.log("1")
-> " " always print same value because string value no change
-> a++ increase value
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