'Len()'/'At()' loop can be replaced with iterator

Reports index-based loops over standard library types where the loop body only accesses elements by index, such as x.At(i).

Some standard library types now provide iterator methods, which let you range over the elements directly. This removes index arithmetic and makes the loop intent clearer.

Example:

func TupleNames(t *types.Tuple) string {
	var names []string
	for i := 0; i < t.Len(); i++ {
		names = append(names, t.At(i).Name())
	}
	return strings.Join(names, ",")
}

To fix the code, use the Replace Len/At loop with Tuple.Variables iteration quick-fix.

After the quick-fix is applied:

func TupleNames(t *types.Tuple) string {
	var names []string
	for v := range t.Variables() {
		names = append(names, v.Name())
	}
	return strings.Join(names, ",")
}

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GoFixStdIterators

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Go | Go fix

Inspection ID: GoFixStdIterators

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection GoFixStdIterators

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

GoLand 2026.2

Inspection Details
By default bundled with:	GoLand 2026.2, Qodana for Go 2026.2,

Last modified: 30 June 2026