You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
291 lines
7.7 KiB
291 lines
7.7 KiB
2 years ago
|
# cache-base [](https://www.npmjs.com/package/cache-base) [](https://npmjs.org/package/cache-base) [](https://npmjs.org/package/cache-base) [](https://travis-ci.org/jonschlinkert/cache-base)
|
||
|
|
|
||
|
|
> Basic object cache with `get`, `set`, `del`, and `has` methods for node.js/javascript projects.
|
||
|
|
|
||
|
|
## Install
|
||
|
|
|
||
|
|
Install with [npm](https://www.npmjs.com/):
|
||
|
|
|
||
|
|
```sh
|
||
|
|
$ npm install --save cache-base
|
||
|
|
```
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
var Cache = require('cache-base');
|
||
|
|
|
||
|
|
// instantiate
|
||
|
|
var app = new Cache();
|
||
|
|
|
||
|
|
// set values
|
||
|
|
app.set('a', 'b');
|
||
|
|
app.set('c.d', 'e');
|
||
|
|
|
||
|
|
// get values
|
||
|
|
app.get('a');
|
||
|
|
//=> 'b'
|
||
|
|
app.get('c');
|
||
|
|
//=> {d: 'e'}
|
||
|
|
|
||
|
|
console.log(app.cache);
|
||
|
|
//=> {a: 'b'}
|
||
|
|
```
|
||
|
|
|
||
|
|
**Inherit**
|
||
|
|
|
||
|
|
```js
|
||
|
|
var util = require('util');
|
||
|
|
var Cache = require('cache-base');
|
||
|
|
|
||
|
|
function MyApp() {
|
||
|
|
Cache.call(this);
|
||
|
|
}
|
||
|
|
util.inherits(MyApp, Cache);
|
||
|
|
|
||
|
|
var app = new MyApp();
|
||
|
|
app.set('a', 'b');
|
||
|
|
app.get('a');
|
||
|
|
//=> 'b'
|
||
|
|
```
|
||
|
|
|
||
|
|
**Namespace**
|
||
|
|
|
||
|
|
Define a custom property for storing values.
|
||
|
|
|
||
|
|
```js
|
||
|
|
var Cache = require('cache-base').namespace('data');
|
||
|
|
var app = new Cache();
|
||
|
|
app.set('a', 'b');
|
||
|
|
console.log(app.data);
|
||
|
|
//=> {a: 'b'}
|
||
|
|
```
|
||
|
|
|
||
|
|
## API
|
||
|
|
|
||
|
|
### [namespace](index.js#L29)
|
||
|
|
|
||
|
|
Create a `Cache` constructor that when instantiated will store values on the given `prop`.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `prop` **{String}**: The property name to use for storing values.
|
||
|
|
* `returns` **{Function}**: Returns a custom `Cache` constructor
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
var Cache = require('cache-base').namespace('data');
|
||
|
|
var cache = new Cache();
|
||
|
|
|
||
|
|
cache.set('foo', 'bar');
|
||
|
|
//=> {data: {foo: 'bar'}}
|
||
|
|
```
|
||
|
|
|
||
|
|
### [Cache](index.js#L43)
|
||
|
|
|
||
|
|
Create a new `Cache`. Internally the `Cache` constructor is created using the `namespace` function, with `cache` defined as the storage object.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `cache` **{Object}**: Optionally pass an object to initialize with.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
var app = new Cache();
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.set](index.js#L84)
|
||
|
|
|
||
|
|
Assign `value` to `key`. Also emits `set` with the key and value.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `key` **{String}**
|
||
|
|
* `value` **{any}**
|
||
|
|
* `returns` **{Object}**: Returns the instance for chaining.
|
||
|
|
|
||
|
|
**Events**
|
||
|
|
|
||
|
|
* `emits`: `set` with `key` and `value` as arguments.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.on('set', function(key, val) {
|
||
|
|
// do something when `set` is emitted
|
||
|
|
});
|
||
|
|
|
||
|
|
app.set(key, value);
|
||
|
|
|
||
|
|
// also takes an object or array
|
||
|
|
app.set({name: 'Halle'});
|
||
|
|
app.set([{foo: 'bar'}, {baz: 'quux'}]);
|
||
|
|
console.log(app);
|
||
|
|
//=> {name: 'Halle', foo: 'bar', baz: 'quux'}
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.union](index.js#L114)
|
||
|
|
|
||
|
|
Union `array` to `key`. Also emits `set` with the key and value.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `key` **{String}**
|
||
|
|
* `value` **{any}**
|
||
|
|
* `returns` **{Object}**: Returns the instance for chaining.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.union('a.b', ['foo']);
|
||
|
|
app.union('a.b', ['bar']);
|
||
|
|
console.log(app.get('a'));
|
||
|
|
//=> {b: ['foo', 'bar']}
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.get](index.js#L144)
|
||
|
|
|
||
|
|
Return the value of `key`. Dot notation may be used to get [nested property values](https://github.com/jonschlinkert/get-value).
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `key` **{String}**: The name of the property to get. Dot-notation may be used.
|
||
|
|
* `returns` **{any}**: Returns the value of `key`
|
||
|
|
|
||
|
|
**Events**
|
||
|
|
|
||
|
|
* `emits`: `get` with `key` and `value` as arguments.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.set('a.b.c', 'd');
|
||
|
|
app.get('a.b');
|
||
|
|
//=> {c: 'd'}
|
||
|
|
|
||
|
|
app.get(['a', 'b']);
|
||
|
|
//=> {c: 'd'}
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.has](index.js#L171)
|
||
|
|
|
||
|
|
Return true if app has a stored value for `key`, false only if value is `undefined`.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `key` **{String}**
|
||
|
|
* `returns` **{Boolean}**
|
||
|
|
|
||
|
|
**Events**
|
||
|
|
|
||
|
|
* `emits`: `has` with `key` and true or false as arguments.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.set('foo', 'bar');
|
||
|
|
app.has('foo');
|
||
|
|
//=> true
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.del](index.js#L199)
|
||
|
|
|
||
|
|
Delete one or more properties from the instance.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `key` **{String|Array}**: Property name or array of property names.
|
||
|
|
* `returns` **{Object}**: Returns the instance for chaining.
|
||
|
|
|
||
|
|
**Events**
|
||
|
|
|
||
|
|
* `emits`: `del` with the `key` as the only argument.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.del(); // delete all
|
||
|
|
// or
|
||
|
|
app.del('foo');
|
||
|
|
// or
|
||
|
|
app.del(['foo', 'bar']);
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.clear](index.js#L218)
|
||
|
|
|
||
|
|
Reset the entire cache to an empty object.
|
||
|
|
|
||
|
|
**Example**
|
||
|
|
|
||
|
|
```js
|
||
|
|
app.clear();
|
||
|
|
```
|
||
|
|
|
||
|
|
### [.visit](index.js#L235)
|
||
|
|
|
||
|
|
Visit `method` over the properties in the given object, or map
|
||
|
|
visit over the object-elements in an array.
|
||
|
|
|
||
|
|
**Params**
|
||
|
|
|
||
|
|
* `method` **{String}**: The name of the `base` method to call.
|
||
|
|
* `val` **{Object|Array}**: The object or array to iterate over.
|
||
|
|
* `returns` **{Object}**: Returns the instance for chaining.
|
||
|
|
|
||
|
|
## About
|
||
|
|
|
||
|
|
### Related projects
|
||
|
|
|
||
|
|
* [base-methods](https://www.npmjs.com/package/base-methods): base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting… [more](https://github.com/jonschlinkert/base-methods) | [homepage](https://github.com/jonschlinkert/base-methods "base-methods is the foundation for creating modular, unit testable and highly pluggable node.js applications, starting with a handful of common methods, like `set`, `get`, `del` and `use`.")
|
||
|
|
* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value "Use property paths (`a.b.c`) to get a nested value from an object.")
|
||
|
|
* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value "Returns true if a value exists, false if empty. Works with deeply nested values using object paths.")
|
||
|
|
* [option-cache](https://www.npmjs.com/package/option-cache): Simple API for managing options in JavaScript applications. | [homepage](https://github.com/jonschlinkert/option-cache "Simple API for managing options in JavaScript applications.")
|
||
|
|
* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value "Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.")
|
||
|
|
* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value "Delete nested properties from an object using dot notation.")
|
||
|
|
|
||
|
|
### Contributing
|
||
|
|
|
||
|
|
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
|
||
|
|
|
||
|
|
### Contributors
|
||
|
|
|
||
|
|
| **Commits** | **Contributor** |
|
||
|
|
| --- | --- |
|
||
|
|
| 54 | [jonschlinkert](https://github.com/jonschlinkert) |
|
||
|
|
| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
|
||
|
|
|
||
|
|
### Building docs
|
||
|
|
|
||
|
|
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
|
||
|
|
|
||
|
|
To generate the readme, run the following command:
|
||
|
|
|
||
|
|
```sh
|
||
|
|
$ npm install -g verbose/verb#dev verb-generate-readme && verb
|
||
|
|
```
|
||
|
|
|
||
|
|
### Running tests
|
||
|
|
|
||
|
|
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
|
||
|
|
|
||
|
|
```sh
|
||
|
|
$ npm install && npm test
|
||
|
|
```
|
||
|
|
|
||
|
|
### Author
|
||
|
|
|
||
|
|
**Jon Schlinkert**
|
||
|
|
|
||
|
|
* [github/jonschlinkert](https://github.com/jonschlinkert)
|
||
|
|
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
|
||
|
|
|
||
|
|
### License
|
||
|
|
|
||
|
|
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
|
||
|
|
Released under the [MIT License](LICENSE).
|
||
|
|
|
||
|
|
***
|
||
|
|
|
||
|
|
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 22, 2017._
|