'substring' call should be replaced with indexing operator

Reports calls like "abc".substring(0, 1) that can be replaced with "abc"[0].

Obtaining the element by index makes your code simpler.

The quick-fix replaces the substring call with the indexing operator.

Example:

fun foo() {
    "abc".substring(0, 1)
}

After the quick-fix is applied:

fun foo() {
    "abc"[0]
}

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Kotlin, @snapshot@

Last modified: 13 July 2023