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What are props in react and how to use them with typescript?

But first, What are props? Is a pattern to share information between a parent component and a child component, where the parent component…

08 October, 2020

What are arrays and how are they used in javascript?

What is an array? It’s a JavaScript object that allows you to store multiple values in a single variable with a specific order. Properties…

28 July, 2020

What is an object in javascript? and what are their methods?

What is an object? A literal object in JavaScript is a type of data that is declared with a variable that is used to store the collection of…

28 July, 2020

What is prototype in javascript? and how to understand the most important and basic concept?

Colaboration by Gerardo Leal Classes in JavaScript In ES2015, the keyword was introduced to provide a cleaner syntax to create objects in…

24 July, 2020

What is this in javascript? and what are their rules?

What is this? A function’s this references the execution context for that call, determined entirely by how the function was called. In other…

20 July, 2020

What is closure and scope in javascript?

What’s scope? Scope defines the lifetime and visibility of a variable. Variables are not visible outside the scope in which they are…

09 July, 2020

What are functions in javascript?

Defining functions Functions are values that can be called or declared, they are one of the fundamental building blocks in JavaScript, that…

06 July, 2020

What are strings in javascript? and what are their most common methods?

String The string is used to represent and manipulate a sequence of characters, they are useful for holding data that can be represented in…

03 July, 2020

What are the control flow statements? and how to use them in javascript?

What are control flow statements? Is the order that the instructions, statements or functions are executed. Expression Any unit of code that…

02 July, 2020

What is the object number in javascript? and what are their methods?

Number in Javascript Number is a primitive object used to represent and manipulate numbers like or . The number constructor contains…

02 July, 2020

What are variables and what are their types in javascript?

What are variables? Variables are containers with reusable data on it, basically a unit of storage in JavaScript. Declare variables in…

30 June, 2020

How to create controlled inputs in react? and why is it a good practice?

Controlled components In HTML the elements , and maintain the update’s state based on their input. In react, states which are mutable must…

29 June, 2020

What is jsx? and how to use it in react?

What is JSX? It is a syntax used as a JavaScript extension in react components to described how it is going to look like the UI. Is…

28 June, 2020

What are the new hooks used for the life cycle? and how to use them in react?

What is the lifecycle in React? They can be defined as a series of methods that are invoked in different states of the component's existence…

21 June, 2020

What are life cycles? and what are they used for in react?

What is the lifecycle in React? They can be defined as a series of methods that are invoked in different states of the component's existence…

03 June, 2020

What are hooks? and What are they used for in react?

What are Hooks? are functions that allow you to maintain a state and react to components' lifecycles. The hook's syntax is a react API…

01 June, 2020

What is the state in react? and how to use it?

What is state? Is an object that determines how that component renders and behavior, in other words is whats allows you to create…

29 May, 2020

What are the functional and class components? and what is the difference between them in react?

React components Components are like JavaScript functions, they accept inputs (called props) and return elements that described what should…

18 May, 2020