JavaScript – Array reverse() Method
The Array reverse() method reverses the order of the items in an array, overwriting the original array.
JavaScript – Array shift() Method
The Array shift() method removes and returns the first element of an array, changing the original array.
JavaScript – Array slice() Method
The Array slice() method returns selected elements in an array as a new array, without changing the original array.
JavaScript – Array some() Method
The Array some() method checks if any array elements pass a test by executing a callback function for each array element.
JavaScript – Array sort() Method
The Array sort() method sorts the elements of an array as strings in alphabetical and ascending order, overwriting the original array.
JavaScript – Array splice() Method
The Array splice() method adds and/or removes array elements, overwriting the original array.
JavaScript – Array toString() Method
The Array toString() method returns a string with array values separated by commas, and does not change the original array.
JavaScript – Array unshift() Method
The Array unshift() method adds new elements to the beginning of an array, overwriting the original array.
JavaScript – Array valueOf() Method
The Array valueOf() method returns the value of the array (contents), and does not change the original array.
JavaScript – Boolean constructor Property
The Boolean constructor property returns the function that created the Boolean prototype.
JavaScript – Boolean.prototype Property
The Boolean prototype property allows you to add new properties and methods to existing booleans.
JavaScript – Boolean toString() Method
The Boolean toString() method returns a string from the boolean.
JavaScript – Boolean valueOf() Method
The Boolean valueOf() method returns the primitive value of a boolean.
JavaScript – Class constructor Method
The Class constructor() method is for creating and initializing objects created within a class.
JavaScript – Class extends Keyword
The Class extends keyword is used to create a child class of a parent class, which then inherits all the methods from the parent class.
JavaScript – Class static Keyword
The Class static keyword defines static methods for classes, which are then called directly on the class without creating an instance.
JavaScript – Class super Keyword
The Class super keyword is used to call the constructor of its parent class to access the parent’s properties and methods.
JavaScript – console.assert() Method
The console.assert() method writes a message to the console if an expression evaluates to false.
JavaScript – console.clear() Method
The console.clear() method clears the console, and depending on the browser, may write “Console was cleared” in the console.
JavaScript – console.count() Method
The console.count() method counts the number of times console.count() is called and writes the number to the console.