Javascript inbuilt Methods list

JavaScript is a powerful and versatile programming language used to add interactivity and functionality to websites. Its unique syntax and flexibility make it a popular choice among developers for both client-side and server-side programming. With JavaScript, you can dynamically manipulate and update web page content, validate forms, create animations, handle events, and much more. It supports object-oriented programming principles and has a wide range of built-in methods and functions that make it easy to work with arrays, strings, numbers, and objects. Whether you are a beginner or an experienced developer, JavaScript offers endless possibilities for creating engaging and interactive web applications.

Some commonly used JavaScript methods are:

• String Methods:

  • length(): returns the length of a string.
  • toUpperCase(): converts a string to uppercase.
  • toLowerCase(): converts a string to lowercase.
  • concat(): concatenates two strings.
  • charAt(index): returns the character at the specified index.
  • split(separator): splits a string into an array of substrings based on the specified separator.

• Array Methods:

  • length(): returns the number of elements in an array.
  • push(element): adds an element to the end of an array.
  • pop(): removes the last element from an array.
  • join(separator): joins all elements of an array into a string, separated by the specified separator.
  • indexOf(element): returns the first index at which the specified element is found in an array.

• Number Methods:

  • toFixed(decimalPlaces): formats a number with a specified number of decimal places.
  • toPrecision(precision): formats a number with a specified length.
  • parseInt(string): parses a string and returns an integer.
  • parseFloat(string): parses a string and returns a floating-point number.
  • isNaN(value): determines whether a value is NaN (Not-a-Number).

• Object Methods:

  • hasOwnProperty(property): returns a boolean indicating whether an object has the specified property.
  • keys(): returns an array of a given object's own enumerable property names.
  • values(): returns an array of a given object's own enumerable property values.
  • assign(target, ...sources): copies the values of all enumerable properties from one or more source objects to a target object.

These are just a few examples of the many methods available in JavaScript. There are many more methods and each object type has its own set of methods. Additionally, you can also create your own custom methods in JavaScript.