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Recursion for Coding Interviews in JavaScript

Solution Review: Length of a String

Explore how to calculate the length of a string using recursion in JavaScript. This lesson helps you understand the base and recursive cases to solve string length problems recursively, building skills for coding interviews.

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Solution: Using Recursion

Javascript (babel-node)
function recursiveLength(testVariable) { 	
	// Base case	
	if (testVariable === "") {
		return 0;
  }
	// Recursive case
	else {
		return 1 + recursiveLength(testVariable.substr(1)); 
  }
}
	
// Driver Code 
testVariable = "Educative";
console.log(recursiveLength(testVariable));

Explanation

In ...