SEARCH KEYWORD -- Share


  Generate first N prime numbers

Recently I am taking an online course named "Startup Engineering" on coursera. There is one assignment which is to use NodeJS to write a program to generate the first 100 prime numbers. This may be very easy for many people. Here I just want to share with you the code to generate not only the first 100 prime numbers. but also any number of prime numbers. Below is the code snippet: //Helper class to generate prime numbers var PrimeProcessor=(function(){ var primeArray=[]; functio...

   Algorithm,Prime number,NodeJS,coursera,JavaScript     2013-06-29 22:08:22

  How many bytes a boolean value takes in Java?

Have you ever wondered how many bytes a boolean value takes in Java? One byte, this might be the answer comes out of your mind right away. But is it? Let's dig in more. Per Oracle documentation on boolean value definition, there is below statement: boolean: The boolean data type has only two possible values: true and false. Use this data type for simple flags that track true/false conditions. This data type represents one bit of information, but its "size" isn't something that's precisely defin...

   JAVA,INTERVIEW,SIZE,BOOLEAN     2020-02-29 02:49:18

  How to maintain a software project?

For a software engineer, at least from my own experience, maintaining an existing software project would take up a considerable amount of time: adding new features, fixing tricky bugs, and so on. In this post, I will share some some tips about how to become a veteran from a novice quickly when facing a new project. (1) Get familiar with the background knowledge of the project. Every software has its own purposes and users: a device driver serves the specified hardware, whilst a SMS gateway helps...

       2017-08-05 02:20:46

  JavaScript tips both novice and veteran developers can benefit from

In this post, we will share some less known but powerful JavaScript tips which can benefit both novice and veteran JavaScript developers. 1. Truncate array with array length We all know that object are passed by reference in JavaScript, but we may be bitten by this rule. Please check below example: var arr1 = arr2 = [1, 2, 3]; //Change arr1 arr1 = []; // arr2 will still be [1,2,3] arr1 and arr2 point to the same array [1,2,3] initially, later when arr1 repoints to [], the reference to arr2 is n...

   JavaScript,Array,push     2013-08-21 04:09:10

  Create customized GitHub profile page

How long have you been using GitHub? Have you ever wondered whether one can customize his profile page with some fancy looking? Indeed GitHub allows developers to customize profile page through a secret repository. The secret is to create a repository with the same name as your GitHub username. And you will be granted into the work of customizing your own profile page. In this post, we will show a simple walk through on how to create it. Create secret repository As indicated by the term secret r...

   GITHUB,CUSTOMIZED PROFILE,SECRET REPOSITORY     2020-10-18 03:02:42

  Do you have this kind of comments in your source code?

Writing runnable code is the essential skill of a programmer, writing understandable comment is also a skill a programmer should acquire. There is some famous saying that bad comment is worth than no comment. Usually your code will be maintained by other people, if you provide them some difficult to understand or misguided comments, this will be nightmare to them. While at some other time, programmers may put some funny comments in their codes which may make others laugh. Today we...

   COMMENT,HUMOR     2016-08-01 10:25:14

  Go channel explained

In Go, a channel is a type of concurrent data structure that allows two or more goroutines (Go's term for lightweight threads) to communicate with each other. Channels provide a way for goroutines to send and receive values, and they are an essential part of Go's concurrency model. Here's a simple example that demonstrates how to use channels in Go: package main import ( "fmt" ) func main() { // Create a new channel with the `make` function ch := make(chan int) // Start a new ...

   GOLANG,CHANNEL     2022-12-10 22:24:26

  Be Careful When Using Cursor to Help Build Application

Below are some tips or tricks when building application with Cursor. These lessons are based on my recent experience while building a Sudoku game (just wanna test Cursor's capability). Do commit frequently. Recommend doing commit for every big change (a new feature such as a new button added for some function, some big UI change like added some new component changing the UI layout a bit) Test everything (regression testing) after doing big change. It may affect existing functions when adding n...

   TIPS,AI,GUIDE,CURSOR,DRAWBACKS     2025-01-05 03:37:00

  Microsoft will drop support of IE8, IE9 and IE10

Microsoft will push the last set of security updates for IE8, IE9 and IE10 next Tuesday(January 12). Thereafter that Microsoft will drop support of these three versions of IE. These are some other old products given up by Microsoft since Windows 7.  IE11 will be the only Internet Explorer supported and Edge will be another star advocated by Microsoft. The good news is you will not get annoying notification from Microsoft anymore to ask you to upgrade your IE. But the bad news users&nb...

   MICROSOFT,IE,NEWS     2016-01-09 07:55:44

  What is the Right Length of a Blog Article?

The length of your blog posts can build your website or break it. If you thought that this is a myth then you are wrong. Pleasing the search engines is one of the targets of SEO efforts. However, you have to please your visitors as well. With good traffic then you will get good ranking on the Search Engine Results pages (SERPs). One of the best ways to increase your traffic is to make sure that once a visitor lands on your site then they will come again for more information. The length of your b...

   DIGITAL MARKETER ,SEO,SEO TOOLS     2016-03-05 04:18:28

RECENT