Introduction: How to Preserve Newlines, Tabs, and Whitespace in JavaScript Strings Strings in JavaScript can be composed of characters, not just alphanumeric. It can also contain newlines, tabs and spaces and other whitespace characters which can impact the appearance and handling of text. In copying texts, however, processing user’s input, or displaying text on a…

Template Literals allow to write multiline strings and insert variables in a string using JavaScript. Unlike string literals made with single and double quotes, template literals use backticks (“`) and you can put expressions inside of ${}. While template literals are useful, when you need to print a literal backtick in the result, or print…

If you make any error when using JSON in JavaScript, you could end up with a failed API call, a corrupted data string, or an error of invalid JSON. There are two common methods to deal with special characters: escaping characters or using JSON.stringify().Although both have their use cases, using JSON.stringify() is the best way…

Regular expressions (regex) is a technique which is used for searching, matching, validating and replacing text in various computer languages including JavaScript, Python, PHP, java etc. However, when one or more special characters approach while searching or replacing, it gets confusing when it comes to using regex. This is one common pitfall, that the way…

Comparing file paths, urls and words (or literals) to regular expressions (regex) can be confusing and particularly confusing when special characters are included in the pattern. Some characters like /, +, ., ?, (, ), [, ] and \ have special meanings which will vary by regular expression syntax and by programming language. For instance,…

The use of regular expressions (regex) for matching, searching, validating, and replacing text has powerful capabilities. In use in JavaScript applications, APIs, in configuration files and JSON based systems. One common problem, however, that developers may encounter is that a regex pattern may require additional backslashes to function properly. For instance you can match a…