What is a pure function? Answer A pure function is a function that satisfies these two conditions: Given the same input, the function returns the same output. The function doesn’t cause side effects outside of the function’s scope (i.e. mutate data outside the function or data supplied to the…
It’s one of the most common question that I come across: “Why is my container not running?” Can docker container exit codes help troubleshoot this issue? The first step in answering this question is to identify the exit code for the docker container. The exit code may give a hint as to what happened…
I’m a developer coming from the PHP (PhalconPHP, Magento) ecosystem and my main concern about javascript has been that, apparently, the community has not adopted one of the practices that, for me, has been the most game changing of all: Dependency Injection. What is Dependency Injection Simply put…
What is the purpose of JavaScript UI libraries/frameworks like React, Vue, Angular, Hyperapp, etc? Answer The main purpose is to avoid manipulating the DOM directly and keep the state of an application in sync with the UI easily. Additionally, they provide the ability to create components that can…
What is a MIME type and what is it used for? Answer MIME is an acronym for Multi-purpose Internet Mail Extensions. It is used as a standard way of classifying file types over the Internet. Good to hear A MIME type actually has two parts: a type and a subtype that are separated by a slash (/). For…
