LimePot
76722fec47
Going to slowly work on a Bulma site, which will end up being the main site. Currently under the /BETA/ folder so Alpha site will still be main site.
105 lines
2.2 KiB
Markdown
105 lines
2.2 KiB
Markdown
# map-obj
|
|
|
|
> Map object keys and values into a new object
|
|
|
|
## Install
|
|
|
|
```sh
|
|
npm install map-obj
|
|
```
|
|
|
|
## Usage
|
|
|
|
```js
|
|
const mapObject = require('map-obj');
|
|
|
|
const newObject = mapObject({foo: 'bar'}, (key, value) => [value, key]);
|
|
//=> {bar: 'foo'}
|
|
|
|
const newObject = mapObject({FOO: true, bAr: {bAz: true}}, (key, value) => [key.toLowerCase(), value]);
|
|
//=> {foo: true, bar: {bAz: true}}
|
|
|
|
const newObject = mapObject({FOO: true, bAr: {bAz: true}}, (key, value) => [key.toLowerCase(), value], {deep: true});
|
|
//=> {foo: true, bar: {baz: true}}
|
|
|
|
const newObject = mapObject({one: 1, two: 2}, (key, value) => value === 1 ? [key, value] : mapObject.mapObjectSkip);
|
|
//=> {one: 1}
|
|
```
|
|
|
|
## API
|
|
|
|
### mapObject(source, mapper, options?)
|
|
|
|
#### source
|
|
|
|
Type: `object`
|
|
|
|
Source object to copy properties from.
|
|
|
|
#### mapper
|
|
|
|
Type: `(sourceKey, sourceValue, source) => [targetKey, targetValue, mapperOptions?] | mapObject.mapObjectSkip`
|
|
|
|
Mapping function.
|
|
|
|
##### mapperOptions
|
|
|
|
Type: `object`
|
|
|
|
###### shouldRecurse
|
|
|
|
Type: `boolean`\
|
|
Default: `true`
|
|
|
|
Whether `targetValue` should be recursed.
|
|
|
|
Requires `deep: true`.
|
|
|
|
#### options
|
|
|
|
Type: `object`
|
|
|
|
##### deep
|
|
|
|
Type: `boolean`\
|
|
Default: `false`
|
|
|
|
Recurse nested objects and objects in arrays.
|
|
|
|
##### target
|
|
|
|
Type: `object`\
|
|
Default: `{}`
|
|
|
|
Target object to map properties on to.
|
|
|
|
### mapObject.mapObjectSkip
|
|
|
|
Return this value from a `mapper` function to exclude the key from the new object.
|
|
|
|
```js
|
|
const mapObject = require('map-obj');
|
|
|
|
const object = {one: 1, two: 2}
|
|
const mapper = (key, value) => value === 1 ? [key, value] : mapObject.mapObjectSkip
|
|
const result = mapObject(object, mapper);
|
|
|
|
console.log(result);
|
|
//=> {one: 1}
|
|
```
|
|
|
|
## Related
|
|
|
|
- [filter-obj](https://github.com/sindresorhus/filter-obj) - Filter object keys and values into a new object
|
|
|
|
---
|
|
|
|
<div align="center">
|
|
<b>
|
|
<a href="https://tidelift.com/subscription/pkg/npm-map-obj?utm_source=npm-map-obj&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
|
|
</b>
|
|
<br>
|
|
<sub>
|
|
Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
|
|
</sub>
|
|
</div>
|