flashbackjs
Advanced tools
Flashback is a JavaScript debugger that records and shows what lines in your code were run recently and with what values **for every line of your project without ever setting a breakpoint**. It's a debugger, but with a time machine.
Flashback is a JavaScript debugger that records and shows what lines in your code were run recently and with what values for every line of your project without ever setting a breakpoint. It's a debugger, but with a time machine.
Flashback works via Babel. The following assumes you have Babel set up in your project.
npm install -S flashbackjs
.babelrc:{
"plugins": [
"flashbackjs/babel/visitor"
]
}
When some code runs in your browser (say a click handler on a button), you can see the Flashback for that code in VSCode next to the code itself.
Flashback is still in early development. It currently only works in browser-based apps. Node support is coming soon, which should allow you to add Flashback "intellisense" to your API routes and other server-side code.
Flashback is pretty early proof of concept. If you're interested in contributing, please reach out! I'd love to have your help.
Current improvements to be made:
Warning: Flashback is highly unoptimal piece of junk. Prepare for facepalms.
Flashback works by wrapping every line of your code with an instrumenting function that records the line number and the values of all variables in the scope of that line.
When a line is run, Flashback records the values of all variables at every line of your code and sends it back to VSCode via a websocket. VSCode then uses this data to show you the Flashback for the code you're currently looking at.
FAQs
Flashback is a JavaScript debugger that records and shows what lines in your code were run recently and with what values **for every line of your project without ever setting a breakpoint**. It's a debugger, but with a time machine.
We found that flashbackjs demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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