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Q lazy promise resolution


Resolves promises idly.

npm install q-lazy

It's a simple plugin for Q allowing you to create lazy promises. Such promises start to resolve only after calling .then() on them.

var Q = require('q');
require('q-lazy'); // extends Q 
function heavyFunc () {
    // ... 
    return ret; // the return value can be a promise or a plain value 
var promise = Q.lazy(heavyFunc); // doesn't execute heavyFunc 
promise.then(function (ret) {    // executes heavyFunc 
    // use ret 

For specification take a look at provided testsuite. It's short.