The only little niggle we found during our tests was the fact that the app sometimes struggled to change the UI themes, requiring more than one restart. To conclude, if you’re just looking for a simple JS code editor to try out basic ideas and just let your creativity run wild without having to deal with the complexity of typical code editors, then RunJS is just perfect. RunJS – the perfect playground for creative little JS projects For example, you can install NPM packages from other JavaScript projects, import node modules, as well as change the working directory. Surprisingly, you can also extend the app’s base functionality. Furthermore, you can choose whether line numbering or line wrapping is used, and also how the so-called invisible characters should be handled. For example, from the Settings section, you can change anything from the GUI theme, all the way up to the font and its size. Definitely has more than it leads you to thinkĭespite its overall simplicity, the editor does have a decent array of customization features available. Of course, the editor does have some of the basic features one might expect such as syntax highlighting and indentation, and a real-time code preview function (which can also be turned off in order to allow you to execute the code manually). Hence, the app has a non-pretentious GUI with only two panels (one for writing the code, and one for previewing the output) and not much else in terms of eye candy. Simple JS editor that can be used by beginners and experts alikeĪs mentioned before, the whole idea behind this app is to be as simple as possible. The solution to this problem might come in the form of RunJS, a super-minimalist JavaScript scratchpad that provides an accessible and non-intimidating way of writing and testing JavaScript code directly from your computer’s desktop. Be that as it may, code editors usually tend to be obnoxiously feature-packed, not the best solution for beginners as well as for developers that just want to try out new simple things in JavaScript. If you try pressing Check Code, it fails all the test cases because the function doesn't do anything yet.When it comes to writing and testing JavaScript code there’s really no shortage of very good options out there. This exercise is asking you to write a function to sum two numbers. Here's an example using Python, though this will be similar for JavaScript and Java. It may work fine using positive integers, but what happens if you pass a negative integer? Or a zero? Let's go to the Scratchpad to find out! Then, once your function works, you can copy and paste your final answer into the Unit Test file for your teacher to grade.Īllows you to plug in different inputs to test and/or debug your function □Ī good way to use the Scratchpad is to test out different inputs to see if your code is working properly. In the Scratchpad, you can work out the problem, plug in different inputs, print to the console, make mistakes, experiment, and debug. The Scratchpad is similar to how you would use scratch paper on a math or physics test. The new online sharing feature allows you to share your code and replay its execution (including runtime values). Should contain a fully working function that works as expected □ JavaScript Scratchpad for VS Code, Now with Online Sharing Quokka.js is the 1 tool for exploring and testing JavaScript. Unit Tests are not full programs, so you can't print to the console or plug in numbers to test it out - you can only Check to see if your function passes all the test cases. When it passes all the code checks, Submit your complete Unit Test for grading.Ī CodeHS Unit Test is designed to test one function at a time. Because you can not Run the Unit Test file, it is much easier to write, test, and debug your function in the Scratchpad.Ĭopy & Paste your working function back into the Unit Test file to see if it passes all the test cases. Copy & Paste any starter code from the Unit Test into your Scratchpad.Ĭode your function in the Scratchpad file.
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