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To substitute random items with items from an array with different ones in JavaScript. Let’s look at the instance; the array is − Var array=[m, n, o, p] Let's choose two random items to be replaced with a, while the others remain in their original positions. If m and n are the randomly selected items, and one is removed on one instance, the array would be − Changed array=[a, a, o, p] Let’s dive into the article to learn more about substituting random items in a JavaScript array. To substitute random items, use random() along with map(). Using ... Read More
An array is an ordered list of values in JavaScript. The term "element designated by an index" refers to each value: The following traits describe a JavaScript array: An array can initially store values of many sorts. You could, for instance, store elements of the number, string, Boolean, and null types in an array. Let’s jump into the article to detect and replace all the array elements in a string using regexp in JavaScript. Using regexp in JavaScript A regular expression is a character pattern. Pattern-matching "search-and-replace" operations are performed on text using the pattern. A RegExp Object is a ... Read More
The task we are going to perform in this article is make strings in array become keys in object in a new array in JavaScript. Let’s consider a simple array − let array= ['bike', 'car'] Now, we are going to use map() to convert the above array to a new array (keys in an object). The array will then look like this − let newArray= [{shorts: []}, {tees: []}, ] Let’s dive into the article to learn more about on making a strings in array become keys in object in a new array in JavaScript. Using map() The ... Read More
An array in JavaScript is a group of identically typed elements that are stored in adjacent memory locations and may each be separately referred to using an index to a special identifier. Let’s consider an array consisting of occurrences of repeated names. The array looks like this − var details = [ { studentName: "John", studentAge: 23 }, { studentName: "David", studentAge: 24 }, ... Read More
The task we are going to perform in this article is it possible to create a new data type in JavaScript. For instance, let’s consider we have variable student − var student = "username" console.log(typeof student) Now, I want to declare the type of that variable and print that in the output, and it will look like this − Output:"string" Let’s dive into the article to learn more about creating a new data type in JavaScript. Yes, it is possible to create a new data type in JavaScript, you can use the concept of Class. If you want ... Read More
The innerHTML property of an element in JavaScript allows you to access or modify any HTML or XML markup that is there. Use the method insertAdjacentHTML () to insert HTML into the page as opposed to changing an element's content. In JavaScript to change a tag’s innerHTML based on their order can be done using document.querySelectorAll(). Let’s jump into the article to learn more about changing the tag’s innerHTML based on their order. Using document.querySelectorAll() The static NodeList returned by the Document function querySelectorAll() lists all of the document's elements that match the given set of selectors. Syntax Following is ... Read More
JavaScript has a new Date() constructor which is used to create a date object to get the current date and time. This date object uses the UTC timezone or the client browser's timezone, i.e. if you are in India and use the new Date() constructor to get the date and time, you will get your local time. But sometimes, we may need to get the timezone of another country, which we can't do directly. These can be done using the toLocaleString() method or the format() method. By the end of the article, you will be able to get the date ... Read More
To obtain dates in JavaScript, use either the new Date() or Date() function Object() { [native code] } (either current date or a specific date). While the Date() function Object()produces a string containing the current date and time, the new Date() function Object()creates a new Date object. Let’s dive into the article for getting better understanding on how to format date value in JavaScript How to Format Dates in JavaScript? Date formatting is dependent on you and your requirements. In some nations, the year (06/22/2022) comes first, then the month. In other cases, the day precedes the month, the year ... Read More
For any computer programmer who is working with low-level language or assembly language, it is a fundamental task to convert decimal to hex or hexadecimal. In web development we use colors and to represent them it is a common practice to use hex color codes. In Javascript, it is very easy to convert decimal to hexadecimal because of the built-in functions and methods provided by ECMA. In this article, we will discuss multiple ways to convert decimal to hex in javascript with appropriate examples. Using toString() method Using Custom Function Using the toString() Method As the name suggests ... Read More
CFAbsoluteTime is the elapsed time since Jan 1, 2001, 00:00:00 UTC. This is a standard time format on Apple devices. On the other hand, a date object is a built-in object in JavaScript used to represent date and time values. It has many methods for providing formatting and converting date & time from one form to another. The main difference between CFAbsolute Time and JavaScript Date objects is their format. CFAabsolute time is a numeric value representing the number of milliseconds since the Unix epoch whereas a date object is an object representing a specific date and time, year, month, ... Read More