InterviewHubPRO
Section Overview
Q149

Question 149 of 521

Part 3: DOM, Event Flow, Timers & Browser APIs (104 - 173)

29%
JavaScript Internals (521 Qs)•Part 3: DOM, Event Flow, Timers & Browser APIs (104 - 173)

What are js labels

The label statement allows us to name loops and blocks in JavaScript. We can then use these labels to refer back to the code later. For example, the below code with labels avoids printing the numbers when they are same,

javascript
  var i, j;

  loop1: for (i = 0; i < 3; i++) {
    loop2: for (j = 0; j < 3; j++) {
      if (i === j) {
        continue loop1;
      }
      console.log("i = " + i + ", j = " + j);
    }
  }

  // Output is:
  //   "i = 1, j = 0"
  //   "i = 2, j = 0"
  //   "i = 2, j = 1"
Previous Question (148)

What are break and continue statements

Next Question (150)

What are the benefits of keeping declarations at the top