			var wrappy = require('wrappy')
			module.exports = wrappy(once)
			module.exports.strict = wrappy(onceStrict)

			once.proto = once(function () {
			Object.defineProperty(Function.prototype, 'once', {
			value: function () {
			return once(this)
			},
			configurable: true
			})

			Object.defineProperty(Function.prototype, 'onceStrict', {
			value: function () {
			return onceStrict(this)
			},
			configurable: true
			})
			})

			function once (fn) {
			var f = function () {
			if (f.called) return f.value
			f.called = true
			return f.value = fn.apply(this, arguments)
			}
			f.called = false
			return f
			}

			function onceStrict (fn) {
			var f = function () {
			if (f.called)
			throw new Error(f.onceError)
			f.called = true
			return f.value = fn.apply(this, arguments)
			}
			var name = fn.name \|\| 'Function wrapped with `once`'
			f.onceError = name + " shouldn't be called more than once"
			f.called = false
			return f
			}

rOACCT/node_modules/once/once.js
d5ad7e6ff2ccissn4frontend

once.js
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