> ## Documentation Index
> Fetch the complete documentation index at: https://relivai-63.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Variables

> Save frequently used text as variables.

***

You can designate and use repeatedly used values as variables within your tests.

Unlike [Environment Variables](/guide/write/env-variable), these are temporary variables that are retained only during the execution of the test.

## 1. Creating Variables

You can add a variable by clicking the **\[+]** button at the top right of the **\[Test Steps]** panel in the Reliv Editor and then clicking **\[Add Variable]**.

You can enter the desired variable value as text, or use various types of variables by typing `{` (curly braces).

* **Variable**: Enter the name of a variable defined before the current step.
* **Environment Variable**: These are predefined variables that apply to the entire project.
* **Function**: You can use it to generate a string following a specific rule.

The functions currently supported are as follows.

| Function   | Description                                                                                                                                                                                                                                                                        |
| ---------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `random()` | Generates a random alphanumeric string. <br /> By default, it generates a string of length 10. <br /> You can specify the length of the string to be generated, like `random(1)`.                                                                                                  |
| `now()`    | Generates the current time string at the time of execution. <br /> By default, it generates the current time string in ISO 8601 format. <br /> You can specify the format by entering a [day.js format](https://day.js.org/docs/en/parse/string-format), like `now('YYYY-MM-DD')`. |

<img src="https://mintcdn.com/relivai-63/BAb91s59wIPEUR8S/assets/write/variable/variable-set.png?fit=max&auto=format&n=BAb91s59wIPEUR8S&q=85&s=47c9fb456cd44fb1173d9a7e19952a67" width="2841" height="2255" data-path="assets/write/variable/variable-set.png" />

## 2. Using Variables

When you type `{` (curly braces) in a text input field, a list of variables/environment variables/functions will appear.

You can click to insert a variable.

<Note>
  Each action block has its own namespace for variables. <br />
  Variables defined in one action block (or the top-level) are not recognized inside
  another action block. <br />
  If you want to use a variable from outside an action block inside it, use
  [action block parameters](/guide/action-block#3).
</Note>

<img src="https://mintcdn.com/relivai-63/BAb91s59wIPEUR8S/assets/write/env-variable/env-variable-use.png?fit=max&auto=format&n=BAb91s59wIPEUR8S&q=85&s=f5aa80e12f87c37b61e315120290758f" width="2841" height="2255" data-path="assets/write/env-variable/env-variable-use.png" />