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I created a JavaScript object, but how I can determine the class of that object?
I want something similar to Java's .getClass() method.
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getClass() If an instance of an object is available, then the simplest way to get its Class is to invoke Object. getClass() .
Classes are declared with the class keyword. We will use function expression syntax to initialize a function and class expression syntax to initialize a class. We can access the [[Prototype]] of an object using the Object. getPrototypeOf() method.
The Object type represents one of JavaScript's data types. It is used to store various keyed collections and more complex entities. Objects can be created using the Object() constructor or the object initializer / literal syntax.
There's no exact counterpart to Java's getClass() in JavaScript. Mostly that's due to JavaScript being a prototype-based language, as opposed to Java being a class-based one.
Depending on what you need getClass() for, there are several options in JavaScript:
typeofinstanceofobj.constructor func.prototype, proto.isPrototypeOf A few examples:
function Foo() {} var foo = new Foo(); typeof Foo; // == "function" typeof foo; // == "object" foo instanceof Foo; // == true foo.constructor.name; // == "Foo" Foo.name // == "Foo" Foo.prototype.isPrototypeOf(foo); // == true Foo.prototype.bar = function (x) {return x+x;}; foo.bar(21); // == 42 Note: if you are compiling your code with Uglify it will change non-global class names. To prevent this, Uglify has a --mangle param that you can set to false is using gulp or grunt.
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