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Development

How to sort a list of strings by frequency?

I have a list of files example_list = [7.gif, 8.gif, 123.html] There are over 700k elements and I need to sort them by frequency to see the most accessed file and least accessed file. for i in resl: if resl.count(i) > 500: resl2.append(i) print(resl2) When I run this it never compiles. And i have tried […]

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Development

Handling key names with periods in .Net Core AppSettings / configuration

Consider following appsettings.json: { “Logging”: { “LogLevel”: { “Default”: “Information”, “Microsoft”: “Warning”, “Microsoft.Hosting.Lifetime”: “Information” } }, “AllowedHosts”: “*”, “Number.Of.Retries”: 5, “Option1”: “abc”, “Option2”: “def” } In order to read NumberOfRetries following class can be used successfully: public class AppSettings { public int NumberOfRetries { get; set; } public string Option1 { get; set; } public […]

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Development

Regexp to remove the last character in a URL string only if it equals /

The goal is here to basically get a match in a URL string to give us the full URL up till the last parent folder. So for example, if we had: https://www.example.com/folder1/folder2/folder3/folder4, it would give us https://www.example.com/folder1/folder2/folder3 . The same result should happen if we had a / at the end like this: https://www.example.com/folder1/folder2/folder3/folder4/ I […]

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Development

Balance not getting updated in my Java program

I wrote a java program in which the subclass is BankAccount and SavingsAccount is the subclass of it, and I am doing some transactions with it but the balance is not getting updated and only shows 0.00 as the output. Here is my code: public class BankAccountTest { public static void main(String[] args) { SavingsAccount […]

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Development

How can i chain multiple operations in my calculator using JS?

function add(a, b) { return content.textContent = parseFloat(a) + parseFloat(b); } function sub(a, b) { return content.textContent = parseFloat(a) – parseFloat(b); } function mul(a, b) { return content.textContent = parseFloat(a) * parseFloat(b); } function div(a, b) { return content.textContent = parseFloat(a) / parseFloat(b); } function operate(opertor, a, b) { if (opertor == ‘+’) { add(a, […]

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Development Linux Ubuntu

How to fix internal microphone which stopped working on Ubuntu 18.04?

I am running Ubuntu 18.04.4 on a Lenovo Thinkpad T400. I have been using the microphone in the past without problems with applications such as Google Hangouts, Skype, … – Recently, I tried to have a call and noticed that the microphone stopped working. Speakers are fine. I cannot tell how long the microphone misfunctions […]

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Development Linux Ubuntu

The loss of the internet connection due to the network bridge configuration

I’m following the tutorial on how to set up KVM on Ubuntu 18.04. There is a line saying : “Before you can dive in and start making virtual machines, you’re going to need to set up a network bridge.” And so I follow along, however do I need to set up a network bridge ? […]

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Bitcoin Cryptocurrency Development

Bitcoin config file error

My bitcoin config file displays an error that says The configuration file could not be opened. Anyone else ever have this happen? If so your advice on what fixed it would be greatly appreciated.