JavaScript provides a handful of foundational string methods in the stdlib. You can use the given methods to compose your own utility functions. For example, you can split a multiline string into an array of lines. Each line in that array is a string as well. From here, you can …

You may want to split a JavaScript string into a list of words. JavaScript doesn’t provide a native words method. Yet, it comes with the necessary functionality to build this method yourself. This tutorial shows you how to split a given JavaScript string into an array of words. {{outline} …

In some situations, you want to dynamically access a property in a JavaScript object. You typically access dynamic properties using obj[key]. In situations where you want to access multiple properties, you would need to have multiple assignments for the individual properties. The good thing: you can also use JavaScript …

When interacting with dates in JavaScript you sometimes want to provide shortcuts. Like adding a week to a given date. Or moving today’s meeting two weeks into the future (keeping the day and time). That’s what this tutorial is about: adding a single week or multiple weeks to …

When interacting with data you may run into challenges related to code formatting. Your linter may warn about misalignments from returned objects of third-party libraries or data from APIs. You’re not in control of the data format and style. And yet you want to comply with your project’s …

ECMAScript 2015 introduced the for..of and for..in loops. Both loops allow you to iterate through values in a different way. Please find more details on the differences of both loops in the dedicated tutorial. This tutorial focuses on how to determine whether a given value is actually iterable. …

JavaScript allows you to split strings into an array of string values at individual characters. A hidden functionality is splitting a string into a list of characters. And that’s what this tutorial shows you: how to split a given string value into a list of its individual characters. It …

A previous tutorial showed you how to create a JavaScript Map instance from an existing object. This time we’re doing it the other way around: transforming a JavaScript map into a plain object. {{outline}} Create a JavaScript Object From a Map Modern JavaScript engines ship with the Object.fromEntries( …