For Loop in JavaScript
A for loop in JavaScript is used to execute a block of code repeatedly as long as a given condition is true.
Instead of writing the same code many times, we can use a loop to repeat it automatically.
for (initialization; condition; increment/decrement) {
// code to be executed
}
for loop has three important parts:
1.Initialization – Runs only once at the beginning.
2.Condition – Checked before every iteration. If it is true, the loop runs.
3.Increment/Decrement – Changes the value after each iteration.
While loop in javascript
A while loop is used when you want to repeatedly execute a block of code as long as a condition is true.
Check condition → Execute code → Update something → Check again
1. Basic syntax
while (condition) {
// code to execute
}
for example
`let i = 1;
while (i <= 5) {
console.log(i);
i++;
}`
output
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2
3
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5
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