npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

q-plus

v0.0.8

Published

A Q add-on that adds many promise-based flow-controlling utilities.

Downloads

1,461

Readme

Q+

Q+ is a utility add-on for the promise library Q. It adds flow-control methods to work with data between promises.

Examples

var Q = require('q-plus');

Q(['1145d024','4b4897c2','c89a11ec'])
.mapSeries(function(id) {
    return Animal.duplicate(id);
}).then(function(animals) {
    console.log(animals); //= Array of duplicate animals
})

var africanMammalLocations = [];
Animal.where({ type: 'Mammal' })
.map(function(animal) {
    return animal.getHabitat();
})
.eachSeries(function(habitat) {
    if (habitat.continent == 'Africa')
        africanMammalLocations.push(habitat.name);
}).thenResolve(africanMammalLocations);

Documentation

// Typical 'forEach' usage:
Q([1, 2, 3, 4]).eachSeries(function(num, i) {
    if (num * 3 < 10) storage.push(num);
});
// With a promise as iterator:
Q([{ name: 'Mark' }, { name: 'Sarah' }])
.eachSeries(function(person, i) {
    // use a return statement if using a promise:
    return People.new(person.name); 
});
// Using an object instead of an array:
Q({ one: 1, two: 2, three: 3 }).eachSeries(function(num, key) {
    console.log(key, num); //= one 1, two 2, three 3
});

TODO


TODO


TODO


Repeatedly calls iterator until test returns false;

  • test(value) function : synchronous truth test to perform before each execution of iterator. value is the return value of the last iterator.
  • iterator(value) function : A function or promise which is called each time test passes. value is the return value of the last iterator.
var count = 0;
var arr = [];

// Iterator can be a normal function or a promise
Q.while(function() {
    return count < 10;
}, function() {
    count++;
    arr.push(true);
}).then(function() {
    console.log(arr.length); //= 10
});

// Can be used in a promise chain, passing the return
// value of the last function/iterator to the next
Q(2).while(function(total) {
    return total <= 512;
}, function(total) {
    return Q.delay(2).then(function() {
        return total * 2;
    });
}).then(function(finalTotal) {
    console.log(finalTotal); //= 1024 (2^10)
});

The inverse of while -- repeatedly calls iterator until test returns true.


Calls the iterator n times, and accumulates results the same way you'd use map.

var getPage = function(page) {
    return Results.limit(10).offset(page * 10);
};

Q.times(10, getPage).then(function(pages) {
    console.log(pages[0]); //= [res1, ..., res10]
});

Q(true).times(3, function(isCool) {
    if (isCool) return "cool";
    return "not cool";
}).then(function(arr) {
    console.log(arr); //= ['cool','cool','cool']
});