simple-model

simple-model

Simple model for getting and setting values

var SimpleModel = require('simple-model');

var x = new SimpleModel();

x.on('change', function (prop, newVal, oldVal) {
    console.log('change ' + prop + ' from ' + oldVal + ' to ' + newVal);
});

x.set('foo', 'bar');
// 'change foo from undefined to bar'
x.set('foo', 'baz');
// 'change foo from bar to baz'

x.get('foo');
// 'baz'

Installation

$ npm install simple-model

Dependencies

• deepequal
• attach-middleware
• emitter-context

API

SimpleModel

Create a new instance of a model

model.set(prop, value)

Set the value of prop as value

model.get(prop)

Return the value of prop

model.setMiddleware(fn)

Attach middleware for setting values

refer to attach-middleware for documentation

// resume from previous example
x.setMiddleware(function (prop, val, next) {
    next(null, prop.replace(/ /g, '_'), 'val: ' + val);
});

x.set('foo bar', 'baz');

x.get('foo bar');
// undefined

x.get('foo_bar');
// 'val: baz'

model.getMiddleware(fn)

Attach middleware for getting values

refer to attach-middleware for documentation

// resume from previous example
x.getMiddleware(function (prop, val, next) {
    next(null, prop.replace(/ /g, '_'), 'getMiddleware: ' + val);
});

x.get('foo bar');
// 'getMiddleware: val: baz'

Events

'change' (prop, newVal, oldVal)

Listen for all changes on the model

'change PROP' (newVal, oldVal)

Listen for a specific prop change on the model

Limitations

• Getting values must be synchronous. Let me know if an asynchronous model is needed