Typescript Do While Loop

Typescript do while loop

Created By: chatGPT

A do...while loop in TypeScript allows you to execute a block of code at least once and then repeat it as long as a specified condition is true. This is particularly useful when you need the loop to execute before checking the condition. Here’s the basic syntax:

do {
    // code block to be executed
} while (condition);

In the above syntax, the code block will be executed once, and then the condition is evaluated. If the condition is true, the loop will execute again; if it’s false, the loop will terminate.

// Example of a do...while loop
let count = 0;
do {
    console.log('Count is: ' + count);
    count++;
} while (count < 5);

In this example, we initialize a variable count to 0. The do...while loop will log the current value of count, increment it, and continue to loop until count is no longer less than 5. The output will be:

// Output:
// Count is: 0
// Count is: 1
// Count is: 2
// Count is: 3
// Count is: 4

If you need to ensure that the code inside the loop runs at least once even when the condition is false upon the first check, a do...while loop is the appropriate choice, unlike a regular while loop.

// Example of a do...while loop with a false condition
let x = 10;
do {
    console.log('This will run at least once.');
    x++;
} while (x < 10);