Syntax error What is the best way to break from nested loops in JavaScript?

What is the best way to break from nested loops in JavaScript?

The best way to break from nested loops is to use labels. A label can be used with break and continue to control the flow more precisely. A label is simply an identifier followed by a colon (:) that is applied to a statement or a block of code.

Example

You can try to run the following code to implement Label with a break statement to break from nested loops −

Live Demo

<html>
   <body>
      <script>
         document.write("Entering the loop! <br /> ");
         outerloop:  // This is the label name

         for (var i = 0; i < 5; i++) {
            document.write("Outerloop: " + i + "<br />");
            innerloop:
            for(var j = 0; j < 5; j++) {
               if(j > 3 ) break ; // Quit the innermost loop
               if(i == 2) break innerloop; // Do the same thing
               if(i == 4) break outerloop; // Quit the outer loop
               document.write("Innerloop: " + j + " <br />");
            }
         }
         document.write("Exiting the loop!<br /> ");
      </script>
   </body>
</html>
Updated on: 2020-06-12T13:16:07+05:30

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