sensordb2 e64a8defe5 3.17 1 rok temu
..
LICENSE e64a8defe5 3.17 1 rok temu
README.md e64a8defe5 3.17 1 rok temu
package.json e64a8defe5 3.17 1 rok temu
wrappy.js e64a8defe5 3.17 1 rok temu

README.md

wrappy

Callback wrapping utility

USAGE

var wrappy = require("wrappy")

// var wrapper = wrappy(wrapperFunction)

// make sure a cb is called only once
// See also: http://npm.im/once for this specific use case
var once = wrappy(function (cb) {
  var called = false
  return function () {
    if (called) return
    called = true
    return cb.apply(this, arguments)
  }
})

function printBoo () {
  console.log('boo')
}
// has some rando property
printBoo.iAmBooPrinter = true

var onlyPrintOnce = once(printBoo)

onlyPrintOnce() // prints 'boo'
onlyPrintOnce() // does nothing

// random property is retained!
assert.equal(onlyPrintOnce.iAmBooPrinter, true)