Can anyone explain me following RandomString

Question

Can anyone explain me following syntax which is used to create randomstring

    ${__time(ddHHMMmmss)}${__javaScript(Math.floor((Math.random() * 10) + 1))}

Answer 1

Math.floor:

The Math.floor() function returns the largest integer less than or equal to a given number.

As per:

• https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Objets_globaux/Math/floor

So __javaScript is a JMeter function that will run :

Math.floor((Math.random() * 10) + 1)

It will give you a number between 1 and 10.

Finally __time is a JMeter function that will give the current date using Java format:

ddHHMMmmss

So results could be for today:

• 12220600539
• 12220600531
• 12220600539
• 12220600537
• 122206005310 ...