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spawn-please
Advanced tools
The 'spawn-please' npm package is a utility that simplifies the process of spawning child processes in Node.js. It provides a promise-based interface for executing shell commands and capturing their output, making it easier to work with asynchronous code.
Execute a command
This feature allows you to execute a shell command and capture its output. The command 'ls' lists directory contents, and the output is logged to the console.
const spawnPlease = require('spawn-please');
spawnPlease('ls').then(output => {
console.log(output);
}).catch(err => {
console.error(err);
});
Execute a command with arguments
This feature allows you to execute a shell command with arguments. The command 'ls -l -a' lists directory contents in long format, including hidden files, and the output is logged to the console.
const spawnPlease = require('spawn-please');
spawnPlease('ls', ['-l', '-a']).then(output => {
console.log(output);
}).catch(err => {
console.error(err);
});
Execute a command with options
This feature allows you to execute a shell command with options. The command 'ls -l' lists directory contents in long format, and the 'cwd' option sets the current working directory to '/tmp'. The output is logged to the console.
const spawnPlease = require('spawn-please');
spawnPlease('ls', ['-l'], { cwd: '/tmp' }).then(output => {
console.log(output);
}).catch(err => {
console.error(err);
});
Execa is a higher-level alternative to Node's child_process module. It provides a promise-based interface for executing shell commands and capturing their output. Compared to 'spawn-please', Execa offers more features such as better error handling, support for streaming output, and more configuration options.
Child-process-promise is a simple wrapper around Node's child_process module that adds promise support. It allows you to execute shell commands and capture their output using promises. While it provides similar functionality to 'spawn-please', it is more lightweight and does not offer as many features.
Promisify-child-process is another package that adds promise support to Node's child_process module. It allows you to execute shell commands and capture their output using promises. It is similar to 'spawn-please' but focuses on providing a minimalistic and straightforward API.
Promisified child_process.spawn. *Supports stdin* *Rejects on stderr*
$ npm install --save spawn-please
promise = spawn(command, [arguments], [stdin])
var spawn = require('spawn-please')
spawn('printf', 'please?')
.then(function(output) {
assert(output === 'please?')
})
spawn('cat', [], 'test')
.then(function(output) {
assert(output === 'test')
})
var spawn = require('spawn-please')
spawn('some-command-with-stderr')
.catch(function(stderr) {
// do something with stderr
})
spawn-please uses the global Promise object by default. You may use your own Promise library by overriding the Promise property:
var spawn = require('spawn-please')
spawn.Promise = require('bluebird')
ISC © Raine Lourie
FAQs
Easy and small child_process.spawn
The npm package spawn-please receives a total of 215,743 weekly downloads. As such, spawn-please popularity was classified as popular.
We found that spawn-please 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.
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