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JavaScript - Part 20 (Bind, Call, Apply)

You can find previous part of this series here. We already know that a function is a special type of object and has several properties, we already discussed it. To better understand what we are go...

Bartek

Bartosz Łogwiniuk

Managing Projects with GraphQL Editor

What is GraphQL Editor A GraphQL Editor is a tool that allows you to understand GraphQL schemas even if you are not a programmer. You can create your schema just by joining visual blocks and Graph...

Lukasz

Łukasz Żarski

How to use AJAX events for parallel requests

AJAX (Asynchronous JavaScript and XML), which gained serious traction in mid-2000s, is a set of techniques consisting of sending asynchronous (hence “A”) requests between the browser and the applic...

Pawel

Paweł Bartulewicz

Basics of curses library in Ruby - Make awesome terminal apps!

Did you ever use Vim, top or its better alternative, htop? Immortal Midnight Commander? Or maybe the more user friendly version of du, ncdu? They are all terminal applications working in full scree...

Rafal2

Rafał Camlet

GraphQL pagination in Rails

GraphQL cursor pagination in Rails. So you implemented some graphQL types but it just turns out that returning bazillions of records with each query introduces some performance issues. "It would b...

Kamil

Kamil Milewski

JavaScript - Part 19 (Closures)

After Immediately Invoked Function Expression, it's time for another very important topic. Closures At the moment, I hope that reading everything from the previous parts will pay off for a better...

Bartek

Bartosz Łogwiniuk

JavaScript - Part 18 (IIFE)

The time has come to meet seen almost everywhere, the very popular IIFEs. Immediately Invoked Function Expressions What is IIFE really? Let's start with the fact that we already know what a Funct...

Bartek

Bartosz Łogwiniuk

JavaScript - Part 17 (Arguments)

It's time to start the topic related to one more special key word that JavaScript engine gives us when we invoke the function. arguments It is next to a special variable: this, another element ge...

Bartek

Bartosz Łogwiniuk

JavaScript - Part 16 (this)

Ok, we have already talked about functions, objects, execution contexts. Now we will return to the last one. this As you remember during Creation Phase, Execution Context creates a special variab...

Bartek

Bartosz Łogwiniuk

JavaScript - Part 15 (By Value, By Reference)

By Value vs By Reference Although this topic is not really that complicated, I will try my best to explain what by value and by reference means. Let's take the first case. In the beginning, let's...

Bartek

Bartosz Łogwiniuk