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afterfn
Advanced tools
Readme
afterfn
Simply executes after the function is called.
afterfn.return
Allows manipulation of return value.
function doubleNumber(x) {
return x * 2
}
// calls 'Math.abs' after 'doubleNumber'
// after.return allows manipulation of return value
var doubleNumberAbs = after.return(doubleNumber, Math.abs)
var calledWith = []
var results = []
doubleNumberAbs = after(doubleNumberAbs, function fn() {
calledWith = calledWith.concat(fn.args)
results = results.concat(fn.value)
// after ignores return value of after function.
})
console.log(doubleNumberAbs(10)) // => 20
console.log(doubleNumberAbs(-10)) // => 20
console.log(doubleNumberAbs(-100)) // => 200
console.log(calledWith) // => [ 10, -10, -100 ]
console.log(results) // => [ 20, 20, 200 ]
var myPackage = {
name: 'my-package',
version: 1,
build: function() {
// build routine
},
bumpVersion: function() {
this.version++
}
}
// always calls 'myPackage.build' *after* 'myPackage.bumpVersion'
myPackage.build = after(myPackage.build, myPackage.bumpVersion)
console.log('%s@v%s', myPackage.name, myPackage.version) // => my-package@v1
myPackage.build()
console.log('%s@v%s', myPackage.name, myPackage.version) // => my-package@v2
afterfn
returns a new Function.afterfn
ignores return value of after functionafterfn.return
allows manipulation of return valuethis
context is maintained.MIT
FAQs
Invoke a function after a function.
The npm package afterfn receives a total of 15 weekly downloads. As such, afterfn popularity was classified as not popular.
We found that afterfn 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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