A method may take zero or more parameters as input. To demonstrate this, we look at the asserts we use on HackerRank. Sometimes, we have to check whether a given number a is within the range b and c (where b c, and both…
Each object in Ruby may have methods associated with it. To demonstrate this, we want you to print whether a number is even or odd. A number has an even? method associated with it, which returns true or false based on…
Lazy evaluation is an evaluation strategy that delays the assessment of an expression until its value is needed. Ruby introduced a lazy enumeration feature. Lazy evaluation increases performance by avoiding needless…