Programming Archives

How to fix a page not found on Netlify with react-router-dom

Have you tried to refresh your page after successfully deploying it on Netlify and you get “Page not found”? Encountering a “Page Not Found” error on Netlify when using react-router-dom typically indicates an issue with your routing configuration or the deployment setup. To fix this issue, you need to create a netlify.toml file inside your public folder. Netlify allows […]

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Invalid login: 534-5.7.9 Application-specific password required. Learn more at 534 5.7.9 https://support.google.com/mail/?p=InvalidSecondFactor jk8-20020a170903330800b001b9dadf8bd2sm2307952plb.190 – gsmtp

Programming, React Js / learnwithisrak

The error message you provided, “Invalid login: 534-5.7.9 Application-specific password required,” indicates an issue with the login credentials or authentication method you are using for the Gmail SMTP server. Here are a few steps you can take to address the problem: Make sure to update your email sending code with the correct login credentials or

Invalid login: 534-5.7.9 Application-specific password required. Learn more at 534 5.7.9 https://support.google.com/mail/?p=InvalidSecondFactor jk8-20020a170903330800b001b9dadf8bd2sm2307952plb.190 – gsmtp Read More »

ReferenceError: path is not defined

Programming, React Js / learnwithisrak

The path module is a built-in module in Node.js, so you can use it directly without the need for an additional import. Here’s the corrected code snippet: By using require(‘path’).resolve(file.path), the absolute path of the file will be resolved correctly. Please make sure to save your changes and restart the server after making these adjustments.

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Error: ENOENT: no such file or directory

Programming, React Js / learnwithisrak

The error “ENOENT: no such file or directory” typically occurs when the server cannot find the specified file or directory. This error can be related to the file upload destination or the path where the file is being saved. Here are a few steps to help resolve the issue: By using path.resolve(file.path), the absolute path

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How to send form data with a file attachment to an email address using React

Programming, React Js / learnwithisrak

To send form data with a file attachment to an email address using React, you’ll need to follow these steps: Update and recommended solution (https://learnwithisrak.com/how-to-send-form-data-with-a-file-attachment-to-an-email-using-react/) Here’s an example of how to implement this: Frontend (React): Backend (Node.js with Express and Nodemailer): You’ll need to set up a backend server to handle the form data and

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How to Scroll in React Js

Programming, React Js / learnwithisrak

In React, you can use the onClick event handler along with the scrollIntoView() method to scroll to a specific element when a click event occurs. Here’s an example of how you can achieve this: First, make sure you have a reference to the element you want to scroll to. You can use the useRef hook

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How to open a component using onClick in React Js.

Programming, React Js / learnwithisrak

To open a component using `onClick` in React, you can create a state variable to track whether the component should be displayed or hidden. Here’s an example of how to do this: In this example, we’ve created a state variable called `isOpen` using the `useState` hook to track whether the component should be displayed or

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How to remove duplicate char from a string in C++

C++, Programming / learnwithisrak

To remove duplicate characters from a string in C++, you can use the `std::string::erase` and `std::string::find` functions in a loop. Here’s an example code snippet that demonstrates how to remove duplicate characters from a string: In this example, the code loops through each character in the string and checks if there is another occurrence of

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Insertion Sort

Data Structures / learnwithisrak

Insertion sort is a simple sorting algorithm that works by building up a sorted list one element at a time. It compares each element in the list with the elements to its left until it finds the correct position to insert the current element. The algorithm has a time complexity of O(n^2) in the worst

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C Programming Interview Questions

C / learnwithisrak

Q-1: What is a Programming Paradigm? Answer: Programming paradigm means the principle that is used for organization programs. There are two major Programming Paradigms: Structured Programming and Object Oriented Programming (OOP). C language uses the Structured Paradigm, whereas, C++, C#, VB.NET or Java use OOP. OOP has lots of advantages to offer. But even while

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