base
base 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
.
(TOC generated by verb using markdown-toc)
Install
Install with npm:
$ npm i base --save
Usage
var base = require('base');
inherit
function App() {
base.call(this);
}
base.extend(App);
var app = new App();
app.set('a', 'b');
app.get('a');
instantiate
var app = base();
app.set('foo', 'bar');
console.log(app.foo);
Inherit or instantiate with a namespace
A .namespace()
method is exposed on the exported function to allow you to create a custom namespace for setting/getting on the instance.
var Base = require('base')
var base = Base.namespace('cache');
var app = base();
app.set('foo', 'bar');
console.log(app.cache.foo);
API
Create an instance of Base
with options
.
Params
Example
var app = new Base();
app.set('foo', 'bar');
console.log(app.get('foo'));
Set the given name
on app._name
and app.is*
properties. Used for doing lookups in plugins.
Params
name
{String}returns
{Boolean}
Example
app.is('foo');
console.log(app._name);
console.log(app.isFoo);
app.is('bar');
console.log(app.isFoo);
console.log(app.isBar);
console.log(app._name);
Returns true if a plugin has already been registered on an instance.
Plugin implementors are encouraged to use this first thing in a plugin
to prevent the plugin from being called more than once on the same
instance.
Params
name
{String}: The plugin name.returns
{Boolean}: Returns true when a plugin is already registered.
Events
emits
: plugin
with registered
and the name of the plugin as arguments.
Example
var base = new Base();
base.use(function(app) {
if (app.isRegistered('myPlugin')) return;
});
Define a plugin function to be called immediately upon init. Plugins are chainable and the only parameter exposed to the plugin is the application instance.
Params
fn
{Function}: plugin function to callreturns
{Object}: Returns the item instance for chaining.
Events
emits
: use
with no arguments.
Example
var app = new Base()
.use(foo)
.use(bar)
.use(baz)
- plugins that add a single method or property to
app
- plugins that do not return a function
Params
prop
{String}: The name of the property or method added by the plugin.fn
{Function}: The plugin functionoptions
{Object}: Options to use when the plugin is invoked.returns
{Object}: Returns the instance for chaining
Example
app.lazy('store', require('base-store'));
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
app.on('set', function(key, val) {
});
app.set(key, value);
app.set({name: 'Halle'});
app.set([{foo: 'bar'}, {baz: 'quux'}]);
console.log(app);
Return the stored value of key
. Dot notation may be used to get [nested property values][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
app.set('a.b.c', 'd');
app.get('a.b');
app.get(['a', 'b']);
Return true if app has a stored value for key
, false only if typeof
value is undefined
.
Params
key
{String}returns
{Boolean}
Events
emits
: has
with key
and true or false as arguments.
Example
app.set('foo', 'bar');
app.has('foo');
Delete key
from the instance. Also emits del
with the key of the deleted item.
Params
key
{String}returns
{Object}: Returns the instance for chaining.
Events
emits
: del
with the key
as the only argument.
Example
app.del();
app.del('foo');
app.del(['foo', 'bar']);
Define a non-enumerable property on the instance. Dot-notation is not supported with define
.
Params
key
{String}: The name of the property to define.value
{any}returns
{Object}: Returns the instance for chaining.
Events
emits
: define
with key
and value
as arguments.
Example
define('render', function(str, locals) {
return _.template(str)(locals);
});
Visit method
over the items in the given object, or map
visit over the objects in an array.
Params
method
{String}val
{Object|Array}returns
{Object}: Returns the instance for chaining.
Mix property key
onto the Base prototype. If base-methods
is inherited using Base.extend
this method will be overridden
by a new mixin
method that will only add properties to the
prototype of the inheriting application.
Params
key
{String}val
{Object|Array}returns
{Object}: Returns the instance for chaining.
Static method for adding global plugin functions that will be added to an instance when created.
Params
fn
{Function}: Plugin function to use on each instance.
Example
Base.use(function(app) {
app.foo = 'bar';
});
var app = new Base();
console.log(app.foo);
Static method for inheriting both the prototype and
static methods of the Base
class. See [class-utils][]
for more details.
Static method for adding mixins to the prototype. When a function is returned from the mixin plugin, it will be added to an array so it can be used on inheriting classes via Base.mixins(Child)
.
Params
fn
{Function}: Function to call
Example
Base.mixin(function fn(proto) {
proto.foo = function(msg) {
return 'foo ' + msg;
};
return fn;
});
Static method for running currently saved global mixin functions against a child constructor.
Params
Child
{Function}: Constructor function of a child class
Example
Base.extend(Child);
Base.mixins(Child);
Similar to util.inherit
, but copies all static properties,
prototype properties, and descriptors from Provider
to Receiver
.
[class-utils][] for more details.
Test coverage
Statements : 100% (88/88)
Branches : 100% (32/32)
Functions : 100% (19/19)
Lines : 100% (87/87)
Related projects
There are a number of different plugins available for extending base. Let us know if you create your own!
- base-argv: Plugin for base-methods that simplifies mapping argv arguments to tasks, commands, and options | homepage
- base-cli: Plugin for base-methods that maps built-in methods to CLI args (also supports methods from a… more | homepage
- base-config: base-methods plugin that adds a
config
method for mapping declarative configuration values to other 'base'… more | homepage - base-cwd: Base plugin that adds a getter/setter for the current working directory. | homepage
- base-data: adds a
data
method to base-methods. | homepage - base-fs: base-methods plugin that adds vinyl-fs methods to your 'base' application for working with the file… more | homepage
- base-list: base-runner plugin that prompts the user to choose from a list of registered applications and… more | homepage
- base-options: Adds a few options methods to base-methods, like
option
, enable
and disable
. See the readme… more | homepage - base-pipeline: base-methods plugin that adds pipeline and plugin methods for dynamically composing streaming plugin pipelines. | homepage
- base-plugins: Upgrade's plugin support in base-methods to allow plugins to be called any time after init. | homepage
- base-questions: Plugin for base-methods that adds methods for prompting the user and storing the answers on… more | homepage
- base-runner: Orchestrate multiple instances of base-methods at once. | homepage
- base-store: Plugin for getting and persisting config values with your base-methods application. Adds a 'store' object… more | homepage
- base-tasks: base-methods plugin that provides a very thin wrapper around https://github.com/jonschlinkert/composer for adding task methods to… more | homepage
- base-tree: Add a tree method to generate a hierarchical tree structure representing nested applications and child… more | homepage
Running tests
Install dev dependencies:
$ npm i -d && npm test
Contributing
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
Author
Jon Schlinkert
License
Copyright © 2016 Jon Schlinkert
Released under the MIT license.
This file was generated by verb on January 25, 2016.