brightlightkim

With the dramatic rise of functional programming in mainstream JavaScript, curried functions have become common in many applications. It’s important to understand what they are, how they work, and how to put them to good use. What is a curried function? A curried function is a function that takes multiple arguments one at a time. Given a function with 3 parameters, the curried version will take ..

Rest parameters The rest parameter syntax allows a function to accept an indefinite number of arguments as an array, providing a way to represent variadic functions in JavaScript. Syntax function f(a, b, ...theArgs) { // ... } Copy to Clipboard Description A function definition's last parameter can be prefixed with "..." (three U+002E FULL STOP characters), which will cause all remaining (user s..

Arrow function expressions An arrow function expression is a compact alternative to a traditional function expression, but is limited and can't be used in all situations. There are differences between arrow functions and traditional functions, as well as some limitations: Arrow functions don't have their own bindings to this or super, and should not be used as methods. Arrow functions don't have..

Our Structure Manager built an EC2 server that is easy to manage the passing of recording and data. My work's priority this sprint: - Convert to File (Bug there) Convert it to aac, mp3, and video files.

Async and Promises Async Do others while it’s working Do things that take long time (json from web service) Synchronous Block execution of work MIxing Synchronous and Asynchronous Possible Problems Know when synchronous and how to handle it (callbacks) callBack function (one problem) Another callback. (old ways) Possible Solutions callBack function (old ways) Another callback. Promises (better o..