How to Increase the Visibility of Long String Values in VSCode's Go Debugger?

How to Extend Value Visibility in VSCode Debug Mode

In the realm of debugging, it can be frustrating when you're unable to fully inspect the values of variables. Particularly in Go, users have encountered a peculiar limitation: when the value is too long, it's truncated to " ... # more." This hindrance persists even in watch mode and when copying the value.

The solution lies in customizing the delve settings in VSCode's settings.json. delve is the underlying debugger for Go in VSCode. By adjusting a specific parameter called "maxStringLen," you can increase the maximum string length displayed.

However, it's important to strike a balance. While setting the maxStringLen to a higher value may solve the immediate issue, it can potentially slow down the debugger significantly. The same caution applies to other max settings, such as maxArrayValues.

Here's an example showing how to configure maxStringLen and other delve options:

"go.delveConfig": {
    "useApiV1": false,
    "dlvLoadConfig": {
        "followPointers": true,
        "maxVariableRecurse": 3,
        "maxStringLen": 400,
        "maxArrayValues": 400,
        "maxStructFields": -1
    }
}

By adjusting the maxStringLen setting, you can extend the visibility of string values in the debugger and gain a more comprehensive view of your variables. Remember to exercise prudence and avoid overly high values that could impact debugging performance.

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