28 lines
753 B
JavaScript
28 lines
753 B
JavaScript
|
if (typeof Object.create === 'function') {
|
||
|
// implementation from standard node.js 'util' module
|
||
|
module.exports = function inherits(ctor, superCtor) {
|
||
|
if (superCtor) {
|
||
|
ctor.super_ = superCtor
|
||
|
ctor.prototype = Object.create(superCtor.prototype, {
|
||
|
constructor: {
|
||
|
value: ctor,
|
||
|
enumerable: false,
|
||
|
writable: true,
|
||
|
configurable: true
|
||
|
}
|
||
|
})
|
||
|
}
|
||
|
};
|
||
|
} else {
|
||
|
// old school shim for old browsers
|
||
|
module.exports = function inherits(ctor, superCtor) {
|
||
|
if (superCtor) {
|
||
|
ctor.super_ = superCtor
|
||
|
var TempCtor = function () {}
|
||
|
TempCtor.prototype = superCtor.prototype
|
||
|
ctor.prototype = new TempCtor()
|
||
|
ctor.prototype.constructor = ctor
|
||
|
}
|
||
|
}
|
||
|
}
|