104 lines
3.1 KiB
Markdown
104 lines
3.1 KiB
Markdown
|
# JavaScript Stringify
|
||
|
|
|
||
|
|
[![NPM version][npm-image]][npm-url]
|
||
|
|
[![NPM downloads][downloads-image]][downloads-url]
|
||
|
|
[![Build status][travis-image]][travis-url]
|
||
|
|
[![Test coverage][coveralls-image]][coveralls-url]
|
||
|
|
|
||
|
|
> Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`.
|
||
|
|
|
||
|
|
## Installation
|
||
|
|
|
||
|
|
```
|
||
|
|
npm install javascript-stringify --save
|
||
|
|
```
|
||
|
|
|
||
|
|
---
|
||
|
|
|
||
|
|
<a href="https://www.buymeacoffee.com/blakeembrey" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy Me A Coffee" ></a>
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
import { stringify } from "javascript-stringify";
|
||
|
|
```
|
||
|
|
|
||
|
|
The API is similar `JSON.stringify`:
|
||
|
|
|
||
|
|
- `value` The value to convert to a string
|
||
|
|
- `replacer` A function that alters the behavior of the stringification process
|
||
|
|
- `space` A string or number that's used to insert white space into the output for readability purposes
|
||
|
|
- `options`
|
||
|
|
- **maxDepth** _(number, default: 100)_ The maximum depth of values to stringify
|
||
|
|
- **maxValues** _(number, default: 100000)_ The maximum number of values to stringify
|
||
|
|
- **references** _(boolean, default: false)_ Restore circular/repeated references in the object (uses IIFE)
|
||
|
|
- **skipUndefinedProperties** _(boolean, default: false)_ Omits `undefined` properties instead of restoring as `undefined`
|
||
|
|
|
||
|
|
### Examples
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
stringify({}); // "{}"
|
||
|
|
stringify(true); // "true"
|
||
|
|
stringify("foo"); // "'foo'"
|
||
|
|
|
||
|
|
stringify({ x: 5, y: 6 }); // "{x:5,y:6}"
|
||
|
|
stringify([1, 2, 3, "string"]); // "[1,2,3,'string']"
|
||
|
|
|
||
|
|
stringify({ a: { b: { c: 1 } } }, null, null, { maxDepth: 2 }); // "{a:{b:{}}}"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Invalid key names are automatically stringified.
|
||
|
|
*/
|
||
|
|
|
||
|
|
stringify({ "some-key": 10 }); // "{'some-key':10}"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Some object types and values can remain identical.
|
||
|
|
*/
|
||
|
|
|
||
|
|
stringify([/.+/gi, new Number(10), new Date()]); // "[/.+/gi,new Number(10),new Date(1406623295732)]"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unknown or circular references are removed.
|
||
|
|
*/
|
||
|
|
|
||
|
|
var obj = { x: 10 };
|
||
|
|
obj.circular = obj;
|
||
|
|
|
||
|
|
stringify(obj); // "{x:10}"
|
||
|
|
stringify(obj, null, null, { references: true }); // "(function(){var x={x:10};x.circular=x;return x;}())"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Specify indentation - just like `JSON.stringify`.
|
||
|
|
*/
|
||
|
|
|
||
|
|
stringify({ a: 2 }, null, " "); // "{\n a: 2\n}"
|
||
|
|
stringify({ uno: 1, dos: 2 }, null, "\t"); // "{\n\tuno: 1,\n\tdos: 2\n}"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add custom replacer behaviour - like double quoted strings.
|
||
|
|
*/
|
||
|
|
|
||
|
|
stringify(["test", "string"], function(value, indent, stringify) {
|
||
|
|
if (typeof value === "string") {
|
||
|
|
return '"' + value.replace(/"/g, '\\"') + '"';
|
||
|
|
}
|
||
|
|
|
||
|
|
return stringify(value);
|
||
|
|
});
|
||
|
|
//=> '["test","string"]'
|
||
|
|
```
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
MIT
|
||
|
|
|
||
|
|
[npm-image]: https://img.shields.io/npm/v/javascript-stringify.svg?style=flat
|
||
|
|
[npm-url]: https://npmjs.org/package/javascript-stringify
|
||
|
|
[downloads-image]: https://img.shields.io/npm/dm/javascript-stringify.svg?style=flat
|
||
|
|
[downloads-url]: https://npmjs.org/package/javascript-stringify
|
||
|
|
[travis-image]: https://img.shields.io/travis/blakeembrey/javascript-stringify.svg?style=flat
|
||
|
|
[travis-url]: https://travis-ci.org/blakeembrey/javascript-stringify
|
||
|
|
[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/javascript-stringify.svg?style=flat
|
||
|
|
[coveralls-url]: https://coveralls.io/r/blakeembrey/javascript-stringify?branch=master
|