Can You Use a Switch Statement for Greater-Than/Less-Than Comparisons in JavaScript?

Creating a Switch Statement for Greater-Than/Less-Than Comparisons

In certain scenarios, you may find yourself wanting to employ a switch statement to handle greater-than and less-than comparisons, resembling syntax like the following:

switch (scrollLeft) {
  case (<1000):
   //do stuff
   break;
  case (>1000 &amp;&amp; <2000):
   //do stuff
   break;
}

However, using such syntax will result in an error. This article aims to provide insights into the most efficient ways to achieve this functionality using the switch statement syntax.

Based on the comparison of different approaches, the most optimal method determined through testing across multiple browsers is the "switch-range2" approach:

switch (true) {
  case 0 <= scrollLeft && scrollLeft < 1000:
  //...do stuff
  //...more actions
  //...
  break;
  case 1000 <= scrollLeft && scrollLeft < 2000:
  //...do stuff
  //...more actions
  //...
  break;
  //...add more ranges as needed
}

This approach performs notably faster in all tested browsers compared to other alternatives. It utilizes a series of consecutive case statements to cover the desired ranges effectively.

For brevity, the complete test results, demonstrating the performance differences between various approaches, have been omitted from this response.

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