Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
The Lodash library is in JavaScript, which works on the top of ‘_.js’. It can be used while working with arrays, strings, objects, numbers, etc. The assign() method This function is used to copy the original object into a new object. The difference in this and the spread operator is when nested objects are present and if assign() is used to copy the object, then the nested object will not change and the other variables of the object can be changed. There are two parameters to the assign() function. The first parameter is curly braces {} which is used to ... Read More
In JavaScript, objects are the collection of a key value pairs. The properties of the object are the keys and is denoted with a string. The value of the key is the value of the property of the given object. In JavaScript, the objects can be copied to other by many ways in which some of them are − Using spread operator(…) The spread operator in JavaScript is used to copy the values of the original given object to a new object. This operator is represented by three dots(…). Example 1 This example demonstrates how spread operator is used to ... Read More
The Stack property in JavaScript is used to store and keep track of the errors and saves the information such as the type of the error, where the error is raised and the reason of the error. The path of the origin of the error is also stored in the stacks in JavaScript. Stack is the error class property in JavaScript, which is also used to store the functions that are called, the order of the functions called too. The format of the error shown is as first, in the first line the type of the error will be displayed ... Read More
The HTML element is represented by the Div Object in the HTML DOM. When styling other HTML elements with CSS or with JavaScript, this tag is used to indicate the container for those elements. The default container for flow content in HTML is the div element. It doesn't affect the content or layout until it is CSS-styled in some way. The height of the div element can be known in many ways. These ways are discussed in this article. Using offsetHeight The offsetHeight is a property which returns the height of the element in pixels. Syntax The syntax of ... Read More
The RegExp.prototype.test() and RegExp.prototype.exec() methods are the methods in JavaScript used to handle regular expressions. In addition to these two JavaScript includes a number of built-in methods for manipulating and processing text using regular expressions. What are regular expressions? Regular expressions are patterns that are used to search for character combinations in a string. Regular expressions are treated as objects in JavaScript and are denoted by either "regex" or "RegExp." The exec() method The exec() method makes a search for the specified match of the string in the given string. If the match of the string is present in the ... Read More
In JavaScript, dir() and log() are the methods of console object. Console object provides access to the browser’s debugging console. The console.dir() method The console.dir() method output the list of object properties of a specified object in the console to the user. It recognizes the object just as an object and outputs its properties. console.dir shows all properties of a DOM element and can display only one object. Syntax The below syntax is for console.dir method. console.dir(object) Example Following is an example of the console.dir() method in JavaScript − console.dir(673563); console.dir("Welcome to Tutorialspoint"); console.dir(76325 * 476); The console.log() ... Read More
In JavaScript, objects are the collection of a key value pairs. The properties of the object are the keys and is denoted with a string. The value of the key is the value of the property of the given object. Types/Techniques of object copying There are 2 types of copying objects in any language namely: deep copy, and shallow copy. Shallow Copy In this technique an object is copied as little as possible. For suppose if you copy a collection using this technique the structure of the collection is copied to the destination, not the elements. Example Following is an ... Read More
Array is a data type which can store multiple elements of similar data types. For example, array is declared as integer data type then it stores one or more elements of the integer data type. In arrays the element can be manipulated when they are in a loop by using any of the mathematical operations or so. For example, if the array elements are numbers, then the numbers can be multiplied by a fixed number or can be added or subtracted also. The change in the array elements can be done by using a user defined program and the result ... Read More
The address tag in HTML identifies a person's or an organization's contact details. The address tag has several meanings when used in different places in an HTML page, such as, when it is used within the tag, it will display the document's contact information; and if it appears inside the tag, it stands in for the article's contact details. This tag will only take global attributes. These attributes belong to every element in the HTML document even though some elements won’t be affected with these. Syntax Address... Note − The address tag must always ... Read More
Using inline CSS we can apply a distinct style to one HTML element at a time. This can be done using the style attribute. Inline CSS always overrides style properties determined in internal or external style sheets. Syntax Following are the examples… Example In the following example we are applying inline style defined within the style attribute of relevant element DOCTYPE html> Hello Everyone Welcome to Tutorialspoint On executing the above script the incline css get activated and applied to the elements in the text. Using JavaScript ... Read More