docs-v2/content/influxdb/v2/query-data/flux/conditional-logic.md

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---
title: Query using conditional logic
seotitle: Query using conditional logic in Flux
list_title: Conditional logic
description: >
This guide describes how to use Flux conditional expressions, such as `if`,
`else`, and `then`, to query and transform data. **Flux evaluates statements from left to right and stops evaluating once a condition matches.**
influxdb/v2/tags: [conditionals, flux]
menu:
influxdb_v2:
name: Conditional logic
parent: Query with Flux
weight: 220
aliases:
- /influxdb/v2/query-data/guides/conditional-logic/
related:
- /influxdb/v2/query-data/flux/query-fields/
- /flux/v0/stdlib/universe/filter/
- /flux/v0/stdlib/universe/map/
- /flux/v0/stdlib/universe/reduce/
list_code_example: |
```js
if color == "green" then "008000" else "ffffff"
```
source: /shared/influxdb-v2/query-data/flux/conditional-logic.md
---
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