readme.md



define-lazy-prop 


Define a lazily evaluated property on an object


Useful when the value of a property is expensive to generate, so you want to delay the computation until the property is needed. For example, improving startup performance by deferring nonessential operations.


Install

$ npm install define-lazy-prop


Usage

const defineLazyProp = require('define-lazy-prop');

const unicorn = {
    // …
};

defineLazyProp(unicorn, 'rainbow', () => expensiveComputation());

app.on('user-action', () => {
    doSomething(unicorn.rainbow);
});


API


defineLazyProp(object, propertyName, fn)


object

Type: Object

Object to add property to.


propertyName

Type: string

Name of the property to add.


fn

Type: Function

Called the first time propertyName is accessed. Expected to return a value.


Related


lazy-value - Create a lazily evaluated value

import-lazy - Import a module lazily

p-lazy - Create a lazy promise


License

MIT © Sindre Sorhus