Can you explain what the concept of infix functions in programming means?

Infix functions are functions that can be called in infix form, that is, between two operands without using dots and parentheses. In Kotlin, for example, you can declare a function with the infix keyword to call it as an operator.

This improves code readability, especially when the function is logically similar to an operator.

Example in Kotlin:

infix fun Int.times(str: String) = str.repeat(this)

val result = 3 times "Hi "  // result: "Hi Hi Hi "

Here, times is an infix function called between a number and a string.