![]() ![]() Even if you want to debug it, you will have a tough time to set a breakpoint.Īdditional Read : Turning Your Websites into 3D View | Firefox 3D DOM Viewer Now the above code is hard to read or understand. Step 2 : Consider, you have selected “ jquery.js”, Minified code will look as shown in below. Step 1 : From the IE Developer Toolbar, select the “ Debugger Tool” and then select the minified file from the list of loaded JavaScript files. If you are using IE11, with the developer toolbar, you can easily form deminify the minified script and debug or read the code very easily. Because they are not properly formatted and aligned. While this is good for performance, one of the challenges of working with the minified version of file is, it becomes really hard to read and debug. In other cases, such as JavaScript plugins, jQuery framework or even on demand code library are minified to be used directly. Note: You can restart any function frame in the Call Stack, except WebAssembly, async, and generator functions.To build a fast and responsive web application we minified the JavaScript files. In the Call Stack pane, right-click a function and select Restart frame from the drop-down menu. ![]() ![]() The Call Stack pane records the order of function calls. Pause function execution at a breakpoint.In other words, you can restart the function's frame in the call stack. To observe the behavior of a function and re-run it without having to restart the entire debugging flow, you can restart the execution of a single function when this function is paused. Restart a function (frame) in a call stack Note: When not paused on a line of code, the Call Stack pane is empty. The Call Stack pane on the screenshot above is outlined in blue. Represents which function DevTools is currently highlighting. While paused on a line of code, use the Call Stack pane to view the call stack that got you to thisĬlick on an entry to jump to the line of code where that function was called. The Scope pane on the screenshot above is outlined in blue. Non-enumerable properties are greyed out.Double-click a property value to change it.Variables in the local, closure, and global scopes. While paused on a line of code, use the Scope pane to view and edit the values of properties and View and edit local, closure, and global properties In other words, when you see semicolons, you can always expect to step through them even if the actual source you're debugging is minified. When using source maps to debug the minified code in terms of the original code.Therefore, the stepping behavior is identical: The Debugger steps through such expressions just the same. When paused on a line of code containing a function that's not relevant to the problem you'reĭebugging, click Step over to execute the functionįor example, suppose you're debugging the following code: function updateHeader() bar() Once your code is paused, step through it, one expression at a time, investigating control flow and property values along the way. While the execution is paused, hover over a class or function name to preview its properties. Preview class/function properties on hover Key point: While the execution is paused, you can also restart the current function and even live-edit it. You can use the Console to query the evaluated variables, constants, and objects. The debugger shows the current values inline next to the corresponding declarations. While the execution is paused, the debugger evaluates all variables, constants, and objects within the current function up to a breakpoint. To learn how to set breakpoints, see Pause Your Code With Breakpoints. Set a breakpoint so that you can pause your code in the middle of its execution. See Get Started With Debugging JavaScript In Chrome DevTools to learn the basics of debugging. Discover new debugging workflows with this comprehensive reference of Chrome DevTools debugging ![]()
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