The tutorial provided offers a comprehensive explanation of JavaScript while and do...while loops, along with examples demonstrating their usage. Let's summarize the key points covered in the tutorial:
1. Syntax: while (condition) { // body of loop } 2. The loop executes the body as long as the condition evaluates to true. 3. The condition is checked before each iteration, and if false, the loop terminates. 4. Example 1 demonstrates how to display numbers from 1 to 5 using a while loop. 5. Example 2 illustrates calculating the sum of positive numbers entered by the user until a negative number is encountered.
1. Syntax: do { // body of loop } while(condition) 2. The body of the loop is executed at least once, regardless of the condition. 3. After the first execution, the condition is evaluated. If true, the loop continues; otherwise, it terminates. 4. Example 3 displays numbers from 1 to 5 using a do...while loop. 5. Example 4 calculates the sum of positive numbers entered by the user using a do...while loop.
1. When the loop condition is always true, it results in an infinite loop. 2. The tutorial provides examples of infinite while and do...while loops.
1. The for loop is preferred when the number of iterations is known beforehand, while while and do...while loops are used when the number of iterations is uncertain. Overall, the tutorial provides clear explanations, code examples, and flowcharts to help beginners understand the concepts and usage of while and do...while loops in JavaScript. It covers basic scenarios like iterating over a range of numbers and handling user input, as well as discussing infinite loops and when to choose each type of loop.