Find the index of the maximum item of an array

This function finds the index of the largest number in an array.

JavaScript:

let maxIndex = arr => arr.indexOf(Math.max(...arr));

// Example
console.log(maxIndex([10, 20, 30, 2, 50])); // 4
console.log(maxIndex([1.2, 0.2, 0.5, 1.1, 0.9])); // 0

TypeScript:

let maxIndex = (arr: number[]): number => arr.indexOf(Math.max(...arr));

// Example
console.log(maxIndex([10, 20, 30, 2, 50])); // 4
console.log(maxIndex([1.2, 0.2, 0.5, 1.1, 0.9])); // 0
Member since January 2, 2019

As a seasoned WordPress developer with expertise in various tech stacks and languages, I bring years of experience to every project I handle. My passion for coding and dedication to delivering exceptional work ensures that each project I take on is of the highest quality. I specialize in creating custom themes, developing plugins, and building full-scale web systems. By staying up-to-date with the latest industry trends and best practices, I incorporate cutting-edge solutions into my work.

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