21 lines
511 B
Markdown
21 lines
511 B
Markdown
---
|
|
title: Array to flags object
|
|
type: snippet
|
|
tags: [array,object]
|
|
author: chalarangelo
|
|
cover: glass-blowing
|
|
dateModified: 2022-04-12T05:00:00-04:00
|
|
---
|
|
|
|
Converts an array of strings into an object mapping to true.
|
|
|
|
- Use `Array.prototype.reduce()` to convert the array into an object, where each array value is used as a key whose value is set to `true`.
|
|
|
|
```js
|
|
const flags = arr => arr.reduce((acc, str) => ({...acc, [str]: true }), {});
|
|
```
|
|
|
|
```js
|
|
flags(['red', 'green']); // { red: true, green: true }
|
|
```
|