![]() ![]() It helps developers edit web pages and identify and resolve errors, enabling them to build sites and applications much faster and efficiently. The debugging process is vital in software development and often takes just as much time as writing code.Ĭhrome Developer Tools is a set of web developer tools built directly into the Google Chrome browser. **Runtime error:** Here, a program is syntactically sound but has an error that can only be discovered during its execution. However, it will not produce the desired or expected output. **Semantic (logical) error:** This causes a program to compile and run correctly. For instance, in JavaScript, `consol.log('your result')` would cause a syntax error because `console` is misspelled. Syntax errors are produced when you violate one or more of these guidelines. ![]() **Syntax error:** There are specific guidelines for writing code in each programming language. Let us look at some errors you are likely encounter in your program. ![]() In programming and software development, the word "bug" is synonymous with "error." A bug refers to the defects or errors that cause computer software (or programs) to produce incorrect or unexpected results. You will learn how to debug one specific issue, but the general workflow can help resolve all types of errors in your code.ĭebugging is the process of finding and resolving bugs within software programs. This article teaches you how to debug JavaScript code using the Chrome DevTools. It is built directly into the Chrome browser and gives developers a deeper understanding of their applications. The tool that makes resolving errors so much easier is the Chrome Developer Tools (also referred to as Chrome DevTools).Ĭhrome DevTools is a comprehensive developer toolkit with various web authoring and debugging tools. ![]() compressed The cURL (bash) command that Chrome has generated.# A Complete Guide to Debugging Javascript in ChromeĪs a developer, finding and fixing errors in your code can be extremely difficult at times. H 'cookie: ghost-admin-api-session=MASKED' \ H 'accept: application/json, text/javascript, */* q=0.01' \ H 'content-type: application/json charset=UTF-8' \ cURL (bash)įor Linux users, the separator used to continue the command is different in Bash: curl '' \ compressed The cURL (cmd) command that Chrome has generated. H "cookie: ghost-admin-api-session=MASKED" ^ H "accept: application/json, text/javascript, */* q=0.01" ^ H "content-type: application/json charset=UTF-8" ^ If you're on Windows and using the default terminal, you'll probably want to use this cCURL command. If this header is missing from your Node.js script, chances are you can't contact the API. But one of them is the presence of the cookie header in Node fetch. If you carefully compare between the fetch and Node fetch, you might notice that there is not much difference. Sorry! □ fetch await fetch("", ) The Node fetch command that Chrome has generated. I won't show the PowerShell output, as I'm not a fan of this language. Let's take a look at the code they generated. Screenshot of the Network tab inside Chrome DevTools.īut, did you know that by right-clicking on one of the requests, you can copy it to reproduce it? □ Screenshot of the Copy of options in DevTools.Ĭhromium browsers offer us no less than five ways to a request: If you open Chrome DevTools ( F12), navigate to the Network tab and click on the Fetch/XHR filter, you'll see all requests that use the Fetch API (you may need to refresh the page). In this post, I want to share a little trick that you might want to use if you're playing with some APIs: the Copy as function. □Īfter many unsuccessful attempts (probably too many), I finally managed to delete my account after writing a Fetch request. Since I didn't want to contact their support (they really aren't great) and I really want to delete my account, I started looking at their source code to see if I could find a way around it. □♂️- Benjamin Rancourt February 20, 2022 You know a #web app is scrap when you need to look at the #JavaScript code to delete your account. The website has an obscure bug that prevents the submission of the deletion form. This weekend, I tried to delete an account on a website, but I couldn't. ![]()
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