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Category: Uncategorized

GraphQL course querying using GraphQL playground
Category GraphQLPosted on June 16, 2021June 16, 2021

GraphQL course querying using GraphQL playground

If we open the port http://localhost:9000/ we are going to see the GraphQL playground. Note: last GraphQL chapter was GraphQL course implementing a resolver function…
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React testing library – testing a checkbox
Category React Testing LibraryPosted on March 23, 2021March 23, 2021

React testing library – testing a checkbox

This is the first part of an example of how to test a checkbox that is also related with a button in React testing library. …
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JS inheritance when we crate object with constructor
Category InheritancePosted on September 23, 2020September 23, 2020

JS inheritance when we crate object with constructor

Hi, if we are creating objects with a constructor, the prototype of this new object will point to a property named prototype of the function object. …
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ES6 – “this” on Arrow functions
Category ES6Posted on September 3, 2020September 10, 2020

ES6 – “this” on Arrow functions

Hi, today I'm going to show you how the "this" keyword works in an Arrow function. …
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Why NodeList is Not Live?
Category DOMPosted on August 18, 2020August 18, 2020

Why NodeList is Not Live?

Hi, in this post I'm going to explain you why a NodeList is Not Live. …
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Compare 2 arrays in Javascript
Category AlgorithmsPosted on August 14, 2020August 14, 2020

Compare 2 arrays in Javascript

Hi, here is the solution in Javascript for this problem that is commonly asked in interviews. …
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Javascript Classes in ES6
Category ES6Posted on June 26, 2020July 8, 2020

Javascript Classes in ES6

Hi, in ES6 version there is another way to create classes and is easy way to write classes.  …
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Part 8 Testing React Applications – Testing styling
Category TestingPosted on June 22, 2020July 8, 2020

Part 8 Testing React Applications – Testing styling

Hi, in our React component called Todo ( <Todo /> ) we have a prop called completed and if you see the Css style is related to that prop. …
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JS Algorithm – Chunk array
Category AlgorithmsPosted on May 14, 2020July 8, 2020

JS Algorithm – Chunk array

Given an array and chunk size, divide the array into many subarrays where each subarray is of length size. …
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