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Simple operations like adding two numbers or string manipulation codes execute sequentially in JavaScript and return the results instantly. But while coding for real−world applications, we frequently make time−taking calls to databases, APIs, and other applications. These longer calls don’t return the results instantly; they will rather return a promise. A promise is an object to represent the future results of an asynchronous operation. It is used to handle asynchronous processes' eventual success or failure. For instance, if you request some object from an API in JavaScript, you will be given a promise that the task will eventually be complete ... Read More
We will learn about the Promise.race() method in this tutorial. As the name of the race() method suggests, promises passed as a parameter of the race() method do the race to execute. So, Whichever promise will be resolved first, will be executed only by the race() method, and other promises will never be executed. Promise.race() The Promise.race method in JavaScript allows you to wait for the first of a set of promises to be fulfilled or rejected, and to handle the result or error that occurs. It returns a promise that is fulfilled or rejected as soon as one of ... Read More
We will learn about any() method of the promise in this tutorial. In JavaScript, we can use the promises to handle the asynchronous request. Writing the asynchronous code in our application to fetch the data makes it faster as it executes the other code without waiting for the data. Promise.any() Method As the name of any() method suggests, it will execute any promise fulfilled. So, whichever promise will resolve first, will be executed by the promise.any() method and others may or may not be executed. Also, all rejected promises were never executed by the promise.any() method. SyntaxUsers can follow the ... Read More
We can show the popup message to the app users using the popup box. We will learn about the different types of JavaScript popup boxes in this tutorial. There are three different types of popup boxes available in JavaScript below. Alert box Confirm box Prompt box We will learn about all popup boxes one by one below. Alert Box We can show the alert box using the window.alert() method. It simply shows the message in the popup box. We can use the alert box when we need to give some message to the users. For example, when the ... Read More
The Passport is a node package, or library which we can install in any nodeJs project. The Passport provides the functionality for authentication in the app. Also, it provides different encryption strategies to encrypt user information, such as a password. For example, what if Facebook or Google employees could see the password of their users? It is against user privacy. So, in such cases, we can use the Passport, which encrypts the password and stores it in the database. We should know the decryption algorithm and secret key to decrypt the password. Also, the Passport allows us to establish the ... Read More
This tutorial will cover page redirection, introduced in the ES6 version of JavaScript. Page redirection is a way to send web page visitors to another URL from the current URL. We can redirect users to either the different web pages of the same website or another website or server. In JavaScript, a window is a global object which contains the location object. We can use the different methods of the location objects for the page redirection in ES6, which is all we learn below. Using the window.location Object’s href Attribute Value The location object of the window global object contains ... Read More
We will learn non−boolean value coercion to a Boolean one in JavaScript. For beginners, coercion word is new in JavaScript. So, let’s clarify what coercion. Coercion is converting the variable of one data type to another data type. As we all know, JavaScript is not a type−strict language. So, we don’t need to define the types of the variable. Sometimes, JavaScript automatically coerces the variables and gives unpredictable results in the output. There are two types of coercion in JavaScript. One is implicit coercion, and another is explicit coercion. We will learn both coercion one by one in this tutorial. ... Read More
In this article, we will learn how to compare two adjacent strings in excel for identifying differences or similarities. Two methods have been explained in this article as mentioned below. Compare two strings for similarities using a formula. Compare and highlight two strings for similarities or differences using VBA Code. Compare Two Strings for Similarities using a Formula Step 1 − A sample data has been taken as shown below to compare the strings of two columns. Step 2 − Now, enter the following formula in Match Result column and drag the same till the last row to which ... Read More
If you want to compare two or more columns to find duplicate values, it can be done using a formula mentioned in this article. Many times, we come across a data set where values are entered repeatedly and required to be filtered. Let’s see how this can be achieved. Compare Two or More Columns Using a Formula Step 1 − We have taken sample data as shown below having two columns with some duplicate values. Step 2 − In the column C, we will identify the duplicate and unique values using the below formula. IF(ISERROR(MATCH(B3, $A$3−$A$10000, 0)), "Unique", ... Read More
To compare the values of two or more cells there are multiple formulas that can be used. For example, MATCH, If(A=B), EXACT, COUNTIF, etc. Here we will be learning the following two functions to find the exact match or where the formula will compare the strings without considering the case of strings. EXACT − To find the exact match. COUNTIF − To find similar values. Compare Multiple Cells for Equal Values Step 1 − Following is the sample data that we have taken for comparing the strings/cell values in a datasheet. Step 2 − Here, we have ... Read More