option-cache

option-cache

Simple API for managing options in JavaScript applications.

Install with npm

npm i option-cache --save

API

Options

Create a new instance of Options.

• options {Object}: Initialize with default options.

var options = new Options();

.option

Set or get an option.

• key {String}: The option name.
• value {*}: The value to set.
• returns {*}: Returns a value when only key is defined.

app.option('a', true);
app.option('a');
//=> true

.enable

Enable key.

• key {String}
• returns {Object} Options: to enable chaining

Example

app.enable('a');

.disable

Disable key.

• key {String}: The option to disable.
• returns {Object} Options: to enable chaining

Example

app.disable('a');

.enabled

Check if key is enabled (truthy).

• key {String}
• returns: {Boolean}

app.enabled('a');
//=> false

app.enable('a');
app.enabled('a');
//=> true

.disabled

Check if key is disabled (falsey).

• key {String}
• returns {Boolean}: Returns true if key is disabled.

app.disabled('a');
//=> true

app.enable('a');
app.disabled('a');
//=> false

.hasOption

Return true if options.hasOwnProperty(key)

• key {String}
• returns {Boolean}: True if key is is on options.

app.hasOption('a');
//=> false
app.option('a', 'b');
app.hasOption('a');
//=> true

.isBoolean

Return true if options.hasOwnProperty(key)

• key {String}
• returns {Boolean}: True if key is is on options.

app.hasOption('a');
//=> false
app.option('a', 'b');
app.hasOption('a');
//=> true

.flags

• keys {Array}
• returns: {Array}

Generate an array of command line args from the given keys or all options.

---

Example app

Use options-cache in your javascript application:

var util = require('util');
var Options = require('options-cache');

function App(options) {
  Options.call(this, options);
  this.init();
}

util.inherits(App, Options);

App.prototype.init = function() {
  this.option('cwd', process.cwd());
  this.option('foo', 'bar');
};

App.prototype.a = function(value) {
  this.enable(value);
};

App.prototype.b = function(value) {
  if (this.enabled(value)) {
    // do something
  } else {
    // do something else
  }
};

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright (c) 2015 Jon Schlinkert
Released under the MIT license

---

This file was generated by verb on February 13, 2015.