Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

create caching_js #7

Merged
merged 2 commits into from
Jul 30, 2022
Merged
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
30 changes: 30 additions & 0 deletions javascript/caching.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
/**
* @description - Реализация кэширование сохранение результата функции, которая определена в замыкание
* Функция может любой, но она должна быть чистой и всегда возвращать одни и те же значения в ответ на одни и те же аргументы.
* @param {Function} fn
* @returns
*/
function caching(fn) {
const cach = {}
return function (n) {
if (!cach[n]) {
let result = fn(n)
console.log('Добавляю в кэш:', result)
cach[n] = result
return result;
}
console.log('Беру из кэша:', cach[n])
return cach[n]
};
}

const cachMyFunction = caching((n) => Math.pow(n, 3))

cachMyFunction(3)
cachMyFunction(5)
cachMyFunction(6)
cachMyFunction(3)
cachMyFunction(5)
cachMyFunction(6)
cachMyFunction(10)
cachMyFunction(12)