how to use the now function from the underscore library in javascript

To use the now function from the Underscore library in JavaScript, you can simply call it like this:

index.tsx
_.now();
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This function returns the current timestamp (in milliseconds since the Unix epoch). It can be useful for timing events or measuring performance.

Here's an example of using the now function to time a function:

index.tsx
function myFunction() {
  var startTime = _.now();

  // Do some work here...

  var endTime = _.now();
  var elapsedTime = endTime - startTime;

  console.log('Elapsed time: ' + elapsedTime + ' milliseconds');
}
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In this example, myFunction calls _.now() to get the start time, does some work, calls _.now() again to get the end time, calculates the elapsed time, and logs it to the console.