Sergey Kornilov – Page 3

Understand Why Promise Callbacks Run Before setTimeout

Promise reactions use the microtask queue, while setTimeout schedules a later task, so resolved promises normally run first.

SQL

Separate application startup and connection-pool cost from SQL execution by measuring the same controlled write repeatedly.

Parse a Postman response once and use named pm.test assertions to verify status, structure, types, and field values.

PHP

Use CURLOPT_UNIX_SOCKET_PATH for a local Unix-domain socket and reserve CURLOPT_PROXY for an actual HTTP or SOCKS proxy.

Confirm whether a web application firewall blocks a CMS save request, then use managed assets or a narrowly scoped rule exclusion.

SQL

Run the MySQL Shell upgrade checker against the intended target version and configuration file before starting a new server on the data directory.

PHP

Replace deprecated spl_object_hash with spl_object_id for temporary identity or WeakMap for object-keyed metadata.

Read a select value in its change handler and filter an array with an explicit predicate instead of generating functions dynamically.

HTML

Put reusable styles in a CSS file and link it from every HTML page using a path that matches the site deployment.

PHP

Find duplicate Apache Listen 443 directives or a competing process before starting HTTPS in a local XAMPP environment.