JavaScript comes with handy string methods. It provides the basics which allow you to compose the desired functionality. Even though the exact function is not part of JavaScript itself, the available methods allow you to create helper functions providing what you need. This tutorial shows you how to retrieve the …

Sorting arrays in a common use case in application development. Sorting arrays by a boolean value is not as typical as sorting by numbers or strings. At least for us at Future Studio. This tutorial shows you how to sort a JavaScript boolean array. Also: this approach works in TypeScript, …

JavaScript comes with handy string methods. RegEx support in JavaScript string methods is helpful in a lot of use-cases. For example, if you want to remove all numbers from a string: JavaScript has your back! {{outline}} Strip Numbers From a String JavaScript comes with built-in methods to remove all numbers …

ou may want to retrieve the Node.js version running the current process during runtime. For example, you may enforce a certain Node.js release line or at least a specified version while providing a package to the public. Node.js comes with a handy way to detect which Node. …

Here at Future Studio, we offer a selection of premium tutorials that require payment. You need to enroll for a semester in the Future Studio University. The guest semester is an enrollment on a monthly basis. In case you’re enrolling now in the University, the next payment date is …

JavaScript supports the BigInt data type representing whole numbers larger than the Integer rage (2^53 - 1). An app of ours has database tables using a BigInt number for primary keys. ESLint showed an issue that “BigInt is not defined” while mapping the primary key values from the database …

Sometimes you need to retrieve the name of a class in JavaScript. This is helpful for debug messages or when using the class name as an identifier. Retrieving the class name in JavaScript is different for static and instance methods. This tutorial walks you through the individual method types and …

Web frameworks in Node.js provide a request object containing information from the requesting instance. The request object typically includes the IP address of the requesting client. If you want to geo-locate the requesting user, the IP address is helpful. This tutorial shows you how to retrieve the client IP …