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Why have an if statement when you can have an if function?
A special case solution for callback hell that focuses on developer ease-of-use. Executes your functions in series or parallel, tracks errors and results, and provides conditionals.
Allows you to move blocks of code around to change the order of execution.
Current Version: 0.1.1
Tested on: Node 0.10.38
If you're using this module, feel free to contact me on twitter if you have any questions! :) @rjrodger
npm install zig
Some callbacks:
function color(val,callback) {
callback(null,{color:val})
}
function quality(val,callback) {
callback(null,{quality:val})
}
function sound(val,callback) {
callback(null,{sound:val})
}
function texture(val,callback) {
callback(null,{texture:val})
}
Nice and linear down the page.
var zig = require('..')
var result = {}
zig()
.start()
.wait(function(data,done){
color('red',done)
})
.step(function(data){
console.log('color:'+data.color)
return result.color = data.color
})
.wait(function(data,done){
quality('high',done)
})
.step(function(data){
console.log('quality:'+data.quality)
return result.quality = data.quality
})
.if( Math.random() < 0.5 )
.wait(function(data,done){
sound('violin',done)
})
.step(function(data){
console.log('sound:'+data.sound)
return result.sound = data.sound
})
.endif()
.wait(function(data,done){
texture('rough',done)
})
.step(function(data){
console.log('texture:'+data.texture)
return result.texture = data.texture
})
.end(function(err){
if( err ) return console.log(err)
console.log(result)
})
Versus callback hell:
var result = {}
color('red', function(err,data){
if( err ) return console.log(err)
result.color = data.color
console.log('color:'+data.color)
quality('high', function(err,data){
if( err ) return console.log(err)
result.quality = data.quality
console.log('quality:'+data.quality)
if( Math.random() < 0.5 ) {
sound('violin',function(err,data){
if( err ) return console.log(err)
result.sound = data.sound
console.log('sound:'+data.sound)
do_texture()
})
}
else do_texture()
function do_texture() {
texture('rough', function(err,data){
if( err ) return console.log(err)
result.texture = data.texture
console.log('texture:'+data.texture)
console.log(result)
})
}
})
})
npm test
FAQs
Simple, but naughty, control flow for Node.js.
The npm package zig receives a total of 48 weekly downloads. As such, zig popularity was classified as not popular.
We found that zig demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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