JavaScript is an amazing language. It’s extremely powerful, and it makes the web what it is today. But without the right tooling, it can be challenging to use.
If you’re looking for JavaScript debugging tools, look no further! There are plenty of great tools out there that can help you debug your problems — whether it’s a simple warning or a complex error.
Without further ado, here are 11 effective JavaScript debugging tools that will make your life easier:
1. JSHint – A Code Quality Tool
JSHint is a code quality tool that helps you detect errors and potential problems in your code. It supports ES6 and JSX syntax, so it’s perfect for working with React codebases.
We’ve all been there: you spend hours trying to solve a bug, only to realize that the solution was staring at you in the face the whole time.
To avoid such situations, there are several useful debugging tools available. In this blogpost, we will go into detail about 11 of them.
Let’s start with a quick definition of debugging. When your code isn’t working as it should, or is not working at all, it’s time for debugging. This can be done by adding console.log() statements in your code or by using debugging tools like those below.
JavaScript debugging is an essential part of any developer’s workflow. Here are 11 tips to make your JavaScript debugging life easier.
1. Use the browser console
If you’re a front-end developer, this should be your go-to tool for JavaScript debugging. Open the console in Chrome by hitting F12, navigate to “Console”, and get started. In Firefox, Firebug allows you to do the same thing (although it has many more features).
2. Use strict mode
Strict mode enforces best coding practices, which makes it easier to write better code and debug it quickly. To enable strict mode, add “use strict”; at the beginning of your script or function (or use it instead of “var” inside a function).
3. Use source maps
Source maps make it easy to view your original source code directly in the browser even after you’ve minified and compressed it. This can be a huge time saver when trying to find bugs in code that you didn’t write yourself, especially if you’ve minified the code for production and then deployed it without testing (not recommended). To enable source maps in Chrome, go to Settings > Preferences > Sources and check “Enable CSS source maps” and “Enable JavaScript source maps”.
JSHint is a JavaScript tool that checks your code for errors and potential problems. It can be used within your web browser (Firefox, Chrome or Safari) or from the command line, and it works with both JavaScript and CoffeeScript.
JSHint is an excellent example of the benefits of community involvement in software development. Not only has it been written by fellow developers, but there are even more developers who have contributed to its development by reporting issues and helping to fix them too.
JSHint is essentially a fork of JSLint, another linter for JavaScript that was developed by Douglas Crockford (who is also known for writing the JSON object and contributing to YUI). JSHint takes what was good about JSLint and makes it better by giving you more control over the type of errors detected.
Debugging your code is essential for writing high quality JavaScript. But it’s difficult to do when you only have alerts or console.log to work with. In this article we will look at a range of tools that you can use to debug your JavaScript, ranging from simple console apis to fully-fledged browser extensions.
Using the console object is fine when it comes to logging data, but the real power comes when you combine it with other objects and apis like window and XMLHttpRequest.
You can use the console object’s dir() method to inspect any javascript object, including DOM elements and NodeLists. Alongside this, Chrome and Firefox have their own developer tools which give you more control over how you inspect your objects (under Sources > Snippets).
JSHint is a community-driven tool that detects errors and potential problems in JavaScript code and can be used to enforce coding conventions. It was developed by JSHint Community. It is a tool that helps to detect errors and potential problems in your JavaScript code.
JSHint takes a JavaScript source and scans it. If it finds a problem, it returns a message describing the problem and an approximate location within the source. The problem is not necessarily a syntax error, although it often is. JSHint looks at some style conventions as well as structural problems. It does not prove that your program is correct, but it can find some likely errors.
JSHint was created by Anton Kovalyov with help from many contributors.