Calculate how much money are you spending annually on semicolons

cost-of-semis.ts

/**
 * what's the average typing speed characters per minute? 200
 * Assuming the average code length is about 80 characters
 * That means developers will type `;` three times in a minute
 * Let's calculate the time spent on typing semicolons per minute
 */
const timeSpentSemiPerMin = 3 / 200

/**
 * Software developers get paid on average USD 120K in the US
 * Assuming companies almost pay twice that amount in the lifetime of their developers
 * For office and other costs, a developer costs around USD 240K for a company per year
 * Let's now calculate the cost of developers for the company per minute (or 12 months of 160 hour work)
 */
const costOfDeveloperPerMinute = ((240_000 / 12) / 160) / 60
showCost(`Cost of developer per minute (in USD)`, costOfDeveloperPerMinute)

/**
 * Now we calculate the cost of typing semicolons per minute
 */
const costOfSemiPerMin = timeSpentSemiPerMin * costOfDeveloperPerMinute
showCost(`Cost typing semicolons per minute (in USD)`, costOfSemiPerMin)

/**
 * Assuming that average developers spend 2 hours per day coding 🐈
 * Let's see how much that is in a day
 */
const costOfSemiPerDay = costOfSemiPerMin * 60 * 2
showCost(`Cost typing semicolons per day (in USD)`, costOfSemiPerDay)

/**
 * How much is that in a year, assuming 20 days work-month, 12 months of work
 */
const costOfSemiPerYear = costOfSemiPerDay * 20 * 12
showCost(`Cost of typing semicolons per year (in USD)`, costOfSemiPerYear)

/**
 * Microsoft has over 100000 developers according to its own blog
 * How much money does it save Microsoft to ban Semicolons?
 */
const costOfSemiForMicrosoftPerYear = costOfSemiPerYear * 100_000
showCost(`How much money does Microsoft spend on typing semicolons annually (in USD)`, costOfSemiForMicrosoftPerYear)

/**
 * Adobe is much smaller than Microsoft, with 25K employees in total
 * Let's assume half of those employees are software engineers
 * How much money does it save Adobe to ban Semicolons?
 */
const costOfSemiForAdobePerYear = costOfSemiPerYear * 12_500
showCost(`How much money does Adobe spend on typing semicolons annually (in USD)`, costOfSemiForAdobePerYear)

/**
 * Now let's assume that you're working for a company that has 1111 software engineers
 * Bring this number to your CEO to save him USD 1M per year (and get some 💰)
 */
const costOfSemiForYouPerYear = costOfSemiPerYear * 1111
showCost(`How much money does your company with 1111 employees spend on typing semicolons annually (in USD)`, costOfSemiForYouPerYear)

/**
 * Homework: calculate how much does it cost for Amazon engineers to type semicolons per year
 */

/**
 * References:
 * https://companiesmarketcap.com/tech/largest-tech-companies-by-number-of-employees/
 * https://www.typingpal.com/en/blog/good-typing-speed
 * https://www.software.com/reports/code-time-report#:~:text=Our%20data%20reveals%20that%20only,two%20hours%20per%20day%20coding.
 */

function showCost(text: string, cost: number) {
	console.log(text + ': ' + new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' }).format(cost))
}