Michał Perłakowski

Michał Perłakowski has asked 19 questions and find answers to 134 problems.

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addEventListener vs onclick
What does the construct x = x || y mean?
What's the difference between using “let” and “var” to declare a variable?

Email: michal.perlakowski AT gmail.com

Michał Perłakowski questions

Select from subquery and join on subquery in Esqueleto
Can I create an object for which Array.isArray() returns true without using the Array constructor or array literal?
Why does this code throw ReferenceError: test is not defined?
Array.prototype.forEach() not working when called on a proxy with a get handler
group_concat with multiple joins in MySQL
How can I bundle my tests which use Sinon.js using Rollup.js?
Why does Object.keys() and Object.getOwnPropertyNames() produce different output when called on a Proxy object with ownKeys handler?
console.log() called on object other than console
Output an ES module using webpack

Michał Perłakowski answers

Use ES6 proxy to trap Object.hasOwnProperty
How to detect if IndexedDB is enabled
Regex for a string made only of repeated chars
"SyntaxError: Unexpected token )" in Node.js
Does ReasonML support async/await?
Create a JavaScript object from string
Javascript: point-free style in callback
Move HTML children elements out of parent and remove the parent element
All pairs in an ES6 Map
Do I need a semicolon after a named export function declaration