How to Use VSCode Logpoint with Keyboard Shortcuts

Introduction

This article demonstrates how to efficiently utilize VSCode Logpoints using only keyboard shortcuts. This method is particularly beneficial for users who rely on screen readers or prefer keyboard-centric workflows.

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This content originally appeared on DEV Community and was authored by wiscer

Introduction

This article demonstrates how to efficiently utilize VSCode Logpoints using only keyboard shortcuts. This method is particularly beneficial for users who rely on screen readers or prefer keyboard-centric workflows.

Understanding VSCode Logpoint

VSCode Logpoints allow developers to dynamically insert logging messages into their code without modifying the source code itself. This feature is invaluable for debugging and understanding code execution flow.

Setting Up Custom Shortcut for Logpoints

Since there is no default shortcut or menu item for adding Logpoints, follow these steps to define a custom shortcut:

  • Open the keybinding editor with Ctrl + K Ctrl + S.
  • Type Logpoint into the search box and press Tab to navigate to the Debug:Add Logpoint result. Press Enter to activate.
  • Enter your desired keyboard shortcut, for example, Ctrl + L Ctrl + P, and confirm by pressing Enter.

Example File

To illustrate the usage of Logpoints, consider the following JavaScript file:

let a = 1;
let b = plus_4(a);
plus_9(b);
console.log("End of file");

function plus_4(x) {
    console.log("plus 4");
    return x + 4;                               
}

function plus_9(x) {
    console.log("Plus 9");
    return x + 9;
}

Adding Logpoints to Replace console.log

Replacing repetitive console.log statements with Logpoints enhances debugging efficiency:

  • Navigate to the line containing console.log.
  • Use the custom shortcut (Ctrl + L Ctrl + P) to add a Logpoint. Enter a descriptive message when prompted, e.g., "Reached end of file", and press Enter.

Repeat these steps for each console.log statement in your code.

Running in Debug Environment

To execute the JavaScript file with Logpoints:

  • Open the debug panel with Ctrl + Shift + D.
  • Navigate to Javascript Debug Terminal using Tab and activate it.
  • Run the script using: 
  node index.js

Logpoint messages will be displayed in the terminal.

Note for screen reader users: Switch to screen reader compatibility mode with F2 to read the terminal output. Use arrow keys to navigate through lines and press F1 to return to normal mode.

Using Logpoints eliminates the need for repetitive console.log cleanup during debugging sessions, streamlining your workflow.

Removing Logpoints

To remove a Logpoint, position the cursor on the relevant line and press F9, similar to removing breakpoints.

Conclusion

Using VSCode Logpoints significantly improves debugging efficiency compared to traditional console.log methods. It saves time by reducing code clutter and repetitive cleanup tasks, making debugging more focused and productive.

We hope this article helps streamline your development process with VSCode Logpoints. Happy coding!

Thanks for reading.


This content originally appeared on DEV Community and was authored by wiscer


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