mirror of https://github.com/actions/setup-python
48 lines
1.3 KiB
Markdown
48 lines
1.3 KiB
Markdown
|
# jest-serializer
|
||
|
|
|
||
|
|
Module for serializing and deserializing object into memory and disk. By default, the `v8` implementations are used, but if not present, it defaults to `JSON` implementation. Both serializers have the advantage of being able to serialize `Map`, `Set`, `undefined`, `NaN`, etc, although the JSON one does it through a replacer/reviver.
|
||
|
|
|
||
|
|
## Install
|
||
|
|
|
||
|
|
```sh
|
||
|
|
$ yarn add jest-serializer
|
||
|
|
```
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
Three kinds of API groups are exposed:
|
||
|
|
|
||
|
|
### In-memory serialization: `serialize` and `deserialize`
|
||
|
|
|
||
|
|
This set of functions take or return a `Buffer`. All the process happens in memory. This is useful when willing to transfer over HTTP, TCP or via UNIX pipes.
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
import {serialize, deserialize} from 'jest-serializer';
|
||
|
|
|
||
|
|
const myObject = {
|
||
|
|
foo: 'bar',
|
||
|
|
baz: [0, true, '2', [], {}],
|
||
|
|
};
|
||
|
|
|
||
|
|
const buffer = serialize(myObject);
|
||
|
|
const myCopyObject = deserialize(buffer);
|
||
|
|
```
|
||
|
|
|
||
|
|
### Synchronous persistent filesystem: `readFileSync` and `writeFileSync`
|
||
|
|
|
||
|
|
This set of functions allow to send to disk a serialization result and retrieve it back, in a synchronous way. It mimics the `fs` API so it looks familiar.
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
import {readFileSync, writeFileSync} from 'jest-serializer';
|
||
|
|
|
||
|
|
const myObject = {
|
||
|
|
foo: 'bar',
|
||
|
|
baz: [0, true, '2', [], {}],
|
||
|
|
};
|
||
|
|
|
||
|
|
const myFile = '/tmp/obj';
|
||
|
|
|
||
|
|
writeFileSync(myFile, myObject);
|
||
|
|
const myCopyObject = readFileSync(myFile);
|
||
|
|
```
|