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Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

Documentationbreadcrumb arrow Grafana k6breadcrumb arrow JavaScript APIbreadcrumb arrow jslibbreadcrumb arrow utilsbreadcrumb arrow randomString(length, [charset])
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randomString(length, [charset])

Function returns a random string of a given length, optionally selected from a custom character set.

ParameterTypeDescription
lengthintLength of the random string
charset (optional)stringA customized list of characters

Returns

TypeDescription
anyRandom item(s) from the array of characters

Example

JavaScript 
import { randomString } from 'https://jslib.k6.io/k6-utils/1.2.0/index.js';

export default function () {
  const randomFirstName = randomString(8);
  console.log(`Hello, my first name is ${randomFirstName}`);

  const randomLastName = randomString(10, `aeioubcdfghijpqrstuv`);
  console.log(`Hello, my last name is ${randomLastName}`);

  const randomCharacterWeighted = randomString(1, `AAAABBBCCD`);
  console.log(`Chose a random character ${randomCharacterWeighted}`);
}