Loops

Qus. 1 : Which loop is guaranteed to execute at least one time, regardless of the condition?

1. for loop
2. while loop
3. do-while loop
4. None of the above

Qus. 2 : What is the correct syntax for a for loop?

1. for (i = 0; i < 5; i++) { // code }
2. for (i <= 5; i++) { // code }
3. for i = 1 to 5 { // code }
4. for (i = 0; i < 5) { // code }

Qus. 3 : Which of the following is true about the break and continue statements in JavaScript?

1. break statement stops the loop, and continue skips the current iteration
2. continue statement stops the loop, and break skips the current iteration
3. Both break and continue stop the loop
4. Both break and continue skip the current iteration

Qus. 4 : Can we nest loops in JavaScript?

1. Yes, but only two levels deep
2. No, nesting loops is not allowed
3. Yes, we can nest any number of loops
4. Yes, but only with for loops

Qus. 5 : Which loop is most appropriate when the number of iterations is known beforehand?

1. for loop
2. while loop
3. do-while loop
4. foreach loop

Qus. 6 : <p>What will be the output of the following JavaScript code?</p><pre><span style="font-size: 14px;">let i = 0;<br></span><span style="font-size: 14px;">while(i &lt; 3) {<br></span><span style="font-size: 14px;">&nbsp; console.log(i);<br></span><span style="font-size: 14px;">&nbsp; i++;<br></span><span style="font-size: 14px;">}</span></pre>

1. 0 1 2
2. 1 2 3
3. 0 1 2 3
4. 1 2

Programs

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