Javascript Object.create Not Working In Firefox

I always get the following exception in Firefox (3.6.14): TypeError: Object.create is not a function It is quite confusing because I am pretty sure it is a function and the code w

Solution 1:

Object.create() is a new feature of EMCAScript5. Sadly it is not widely supported with native code.

Though you should be able to add non-native support with this snippet.

if (typeofObject.create === 'undefined') {
    Object.create = function (o) { 
        functionF() {} 
        F.prototype = o; 
        returnnewF(); 
    };
}

Which I believe is from Crockford's Javascript: The Good Parts.

Solution 2:

Object.create is part of ES5 and only available in Firefox 4.

As long as you are not doing any add-on development for browsers, you should not expect browsers to implement ES5 features (especially older browsers). You'd have to provide your own implementation then (like the own provided by @Squeegy).

Solution 3:

I use this way(also working in ECMAScript 3):-

functioncustomCreateObject(p) {
   if (p == null) throwTypeError(); // p must be a non-null objectif (Object.create)  // If Object.create() is defined...returnObject.create(p);  // then just use it.var t = typeof p; // Otherwise do some more type checkingif (t !== "object" && t !== "function") throwTypeError();
    functionf() {}; // Define a dummy constructor function.
   f.prototype = p; // Set its prototype property to p.returnnewf(); // Use f() to create an "heir" of p.
}

var obj = { eid: 1,name:'Xyz' };
customCreateObject(obj);