# Is Equal

## Overview

![](https://879976444-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MIspkFTPkuGkv4UgQGs-41739140%2Fuploads%2Fgit-blob-9a82f993c525289350bbe271446171d836c6617a%2Fnode-is-equal.png?alt=media)

**Is Equal** is a *relational expression* **Node**, which compares two input values, and returns a **Boolean**, based on how the two values compare to each other in terms of *equality*. The **Node** has two modes, determined by the `Mode` **Attribute**:

1. `IsEqual` - Are the two values equal in value.
2. `IsNotEqual` - Are the two values *not* equal in value.

*Relational expressions* are frequently used in combination with **Branch Nodes** and *logical operator* **Nodes** (**AND**, **OR**, and **Negate**) to create *conditional logic*, and are essential for building complex systems.

## Attributes

| Attribute         | Type                                          | Description                                                             |
| ----------------- | --------------------------------------------- | ----------------------------------------------------------------------- |
| `Data Type`       | **Drop-down**                                 | The type of data that will be plugged into the `A` and `B` **Sockets**. |
| `Mode`            | **Drop-down**                                 | The type of expression that will be used when comparing the values.     |
| `Default Value A` | *Defined in the `Data Type`* ***Attribute**.* | The value of `A` if no value is provided via the **Node**'s **Socket**. |
| `Default Value B` | *Defined in the `Data Type`* ***Attribute**.* | The value of `B` if no value is provided via the **Node**'s **Socket**. |

## Inputs

| Input             | Type                                          | Description                                                           |
| ----------------- | --------------------------------------------- | --------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse**                                     | A standard input **Pulse**, to trigger the execution of the **Node**. |
| `A`               | *Defined in the `Data Type`* ***Attribute**.* | The value to be compared with `B`.                                    |
| `B`               | *Defined in the* `Data Type` ***Attribute***  | The value to be compared with `A`.                                    |

## Outputs

| Output             | Type      | Description                                                                                                                          |
| ------------------ | --------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| *Pulse Output* (►) | **Pulse** | A standard output **Pulse**, to move onto the next **Node** along the *logic branch*, once this **Node** has finished its execution. |
| `C`                | **Bool**  | Returns *true* if `A` is equal to `B`. If not, then it returns *false*.                                                              |

## External Links

[*Relational operator*](https://en.wikipedia.org/wiki/Relational_operator) on Wikipedia.