Introduction to JavaScript Exception handling Exceptions were not included in JavaScript until ES3. Modern JavaScript has feature to handle errors and exceptions. We use ” try, catch, throw, and finally statements ” in JavaScript Exception handling, The try statement allows you to check for errors in a block of code. You can create custom errors…
7 Best JavaScript Unit Testing Frameworks And Tools Jest Jest is a JavaScript unit testing framework maintained by Facebook. It is available to focus on simplicity and support for large web applications. It supports projects created with major javascript frameworks. It includes libraries e.g. Babel, TypeScript, Node.js, React, Angular and Vue.js. Features of Jest You…
JavaScript date and time formats are the most searched topics. The Date is the built-in object. it enables us to create, store and modify date and time formats.
JavaScript Regular Expressions are the sequences of characters known as search patterns. These patterns are used to search or find & replace the strings (or text).
array map method in JavaScript creates a new array with the result of calling functions for elements of the parent array. The map method in JavaScript is used to iterate over an array with calling the function on each element of the specified array.
JavaScript RegExp Defination The JavaScript RegExp object explains the patterns of characters. These patterns are used in search, validation, and search and replace functionality in JS programming. JavaScript RegExp Syntax In above example the /infopediya/i is example of JS RegExp. The /infopediya/ is a pattern and /i is a modifier. we will explain the modifiers…