In Chrome this is possible, but I don't find a way to do it in Safari. Is it possible? How?...
I'm looking for a way to open the WebKit “developer tools” from a script attached to a web-page. I need solutions for both Google Chrome and Safari, that will open the developer-tools pane if it's not already open, and (hopefully, if you...
Unknown script action (probably async) causes page reload.  How can I find this action in the code?  At least, is there any way to set breakpoint on access to window.location? But I'm not sure that navigation is forced in such way.  In fact I nee...
When using Safari Web Inspector to read the JavaScript console output, the log is reset upon navigation i.e. going from page index.html to mail.html clears the console output. In the Chrome Developer Tools, I can easily preserve the log by right clic...
When debugging a React website, I can view the component hierarchy using the React Developer Tools:    How can I do the same in React Native? The rage shake menu contains an 'inspector' but it only seems to let me inspect a single element by...
When I use the Developer Tools in Chrome to collect JavaScript CPU Profiles, I am getting two mysterious warnings on functions:   Not optimized: optimized too many times Not optimized: inlining bailed out   What do these actually mean? and what are s...
I have an <input type="hidden">. I need to see when it's value changes. I have many JavaScript files changing it's value.  I can just go everywhere where values are changed and add the debugger statement, but it will take lot of...
Why does Chrome display two differing datasets depending on if you have the object view expanded?  In contracted view, my object has two properties:    In expanded view, my object has three properties:...
I have recently started to tinker with Project Euler problems and I try to solve them in Javascript. Doing this I tend to produce many endless loops, and now I'm wondering if there is any better way to terminate the script than killing the tab in...

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