when you use break, you skip the rest of the code in the block, and the remaining iterations. The obvious consequential question is why would anyone recommend otherwise? Well. I agree with others who recommend using break. Using something like a Set or Map may provide better results.
If you're considering using a break while iterating over a sequence for some particular item, you might want to reconsider the data structure used to hold your data. I will say that break (and return) statements often increase cyclomatic complexity which makes it harder to prove code is doing the correct thing in all cases. To improve readability many languages ( at least Java does) support breaking to labels which will greatly improve readability. In the next tutorial, we will discuss continue statement in JavaScript with example programs.There is nothing inherently wrong with using a break statement but nested loops can get confusing. Hope that you will have understood the basic concepts of break statement. In this tutorial, you learned how to use the break statement in JavaScript to exit from the loop. Let’s create a program where we will use break statement inside the do-while loop to exit from the loop.Ĭonst stNames = Let’s create a program where we will use break statement inside while loop to exit from loop.ĥ. We can use it inside the switch block to come out of switch block.Ĥ. Look at the below figure to understand better.Ģ. We can use a break inside the body of loop to come out of it. Use of Break Statementīreak statement in JavaScript can be used in three ways that are:ġ. Without a label, you can only use break inside a loop or a switch. The general syntax to use break statement with label is as: break labelName
You can also use the break statement with a label reference, to break out of any JavaScript code block. The flowchart of break statement in JavaScript has shown in the below figure. The syntax to use break statement in JavaScript is as follows: // Jump statement We can use JavaScript break statement in all types of loops, such as for loop, while loop, and do-while loop. When the loops are nested, the break statement breaks only the inner loop. Similarly, when break statement encounters inside the switch block, it terminates ‘case’ inside the switch block and stops the execution of more cases inside the switch. As a result, the control continues the execution of the next statement immediately following the loop body.
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