Code Example Archives - Page 13 of 21 - Learn ReactJS & React Native With Me

Python

cannot import name ‘to_categorical’ from ‘keras.utils’

Akash Mittal
September 4, 2022

Python Tensorflow throws error “cannot import name ‘to_categorical’ from ‘keras.utils’” when you are using Tensorflow version 2 but implementing the older syntax. Solution Instead of using this syntax for importing…

View Post

Python

pip is being invoked by an old script wrapper

Akash Mittal
September 4, 2022

Python throws error “pip is being invoked by an old script wrapper” either due to incompatible pip version or due to multiple versions of pip. Solution To resolve this error,…

View Post

Python Poetry could not find pyproject.toml file

Python

Poetry could not find a pyproject.toml file

Akash Mittal
September 4, 2022

Python poetry throws error “Poetry could not find a pyproject.toml file” when it is not able to find pyproject.toml file in project directory. It means Poetry is not initialized properly.…

View Post

Python

python run bash script in background

Akash Mittal
September 5, 2022

Python subprocess library is used to run processes like bash script in the background. It can create new processes, connect with their input/output/error pipes and obtain their error codes. Code…

View Post

Bootstrap tour links to other pages

Akash Mittal
September 5, 2022

In this article we will see how Bootstrap Tour links to other pages. By the end of this post we will create a multi page application with Bootstrap tour embedded…

View Post

Python

Only length-1 arrays can be converted to python scalars

Akash Mittal
September 5, 2022

Numpy throws error – only length-1 (size-1) arrays can be converted to python scalars when you are passing an array to a Python inbuild function which expects single value. This…

View Post

Android

aapt: error: resource android:color/system_neutral1_1000 not found

Akash Mittal
July 23, 2022

You will get aapt: error: resource android:color/system_neutral1_1000 not found when you are using Material-1.5.0-alpha03 or later and using compiledSdkVersion less than 31. Problem According to Material Component release notes, Make…

View Post

JavaScript

Es6 Array Limit First n Elements using Array.slice()

Teresia Wachira
September 5, 2022

Introduction We get the first n elements easily using the Array.slice() method. The slice() method returns selected elements in an array, as a new array but does not modify the…

View Post

React JS

Creating charts using google charts in ReactJS

Teresia Wachira
September 5, 2022

Introduction Data visualization is an important concept, especially in situations where statistics are involved. And google charts have made it easy. It is a great way to present data and…

View Post

Blockchain

Convert bytes32 to string in Solidity

Saad Mushtaq
July 19, 2022

In solidity, you must have wondered which one will make my code more efficient and my smart contracts better – Is it bytes32 or string? Today we will learn how…

View Post

contact us form in react js using tailwindcss

React JS

Contact Form in React Js using TailwindCSS

Teresia Wachira
September 5, 2022

Introduction Web application users have the chance to contact the developer or team of the web app by using a contact form. Typically, “contact us” pages employ email as the…

View Post

React JS

Creating calendars date-time pickers in Reactjs

Teresia Wachira
September 5, 2022

Introduction Adding a calendar or time input component has been made easy in React through the react date picker component. Date-time pickers(DTPs) help solve the confusion that occurs in date…

View Post

Solidity Error - send and transfer are only available for objects of type address payable not address

Blockchain

ERROR send and transfer are only available for objects of type address payable, not address [solidity]

Saad Mushtaq
July 16, 2022

In Solidity, you may encounter this error, “send and transfer are only available for objects of type address payable, not address” when you try to run function calls like .transfer()…

View Post

Angular

Can’t bind to ‘ngModel’ since it isn’t a known property of ‘input’

Sadok Jbenyeni
September 4, 2022

If you are facing this error in your Angular application, “Can’t bind to ‘ngModel’ since it isn’t a known property of ‘input’” then here we will discuss its meaning and…

View Post

infinite loading in reactjs using react-infinite-scroll-component

React JS

Creating infinite loading & Scrolling in ReactJs

Teresia Wachira
September 5, 2022

Introduction Many applications use the infinite scroll functionality to display large number of records. For example, when you browse through the products on ecommerce like Amazon.com, you either get the…

View Post

JavaScript

Error: Can’t render headers after they are sent to the client [nodejs]

Imran Alam
September 5, 2022

The “Error: Can’t render headers after they are sent to the client” is a very common error in Node.js. This error is caused by the fact that Node.js buffers the…

View Post

React JS

Image Editing and Cropping in ReactJs

Teresia Wachira
September 5, 2022

If you have an application where a profile section is created, you most probably also asking for user’s photo for it. But different users have different phones and you end…

View Post

Angular

How to upload a file in Angular?

Sadok Jbenyeni
September 5, 2022

Uploading files in Angular requires using FormData() api from Javascript. We need to create a form and append data in its formdata variable. We have tried to make the method…

View Post

React JS

How to embed Youtube videos using ReactJs

Teresia Wachira
September 5, 2022

Introduction In React it is easy to embed and play YouTube videos in your application. You can do it in two ways. One includes using the Iframe tag while the…

View Post

Svelte – Conditions and For Loops – If, Else, Each and Await blocks

Akash Mittal
September 5, 2022

In this article we will learn how to use conditions and loops in Svelte. We will use if, else, elseif conditions along with for & each loop blocks. We will…

View Post