The constructor Property

JavaScript Foundations Part 2

The constructor Property

The constructor property helps find the constructor function of an object.

Example:

console.log({name: ‘John’, age: 34}.constructor); // Returns function Object() {[native code]} console.log([1, 2, 3].constructor); // Returns function Array() {[native code]} console.log(new Date().constructor); // Returns function Date() {[native code]} console.log((42).constructor); // Returns function Number() {[native code]} console.log(“Hello”.constructor); // Returns function String() {[native code]}

Important Note:

The constructor property can be overwritten, so it may not always provide reliable results.

The void Operator

The void operator evaluates an expression and returns undefined.

Example:

<a href="javascript:void(0);">Click me</a>

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