SEARCH KEYWORD -- Bit operation


  Free PHP, HTML, CSS, JavaScript editor - Codelobster IDE

In this article, we suggest you to get acquainted with the free editor of web languages - Codelobster IDE. It is presented on the software market for a long time already, and it wins a lot of fans. Codelobster IDE allows you to edit PHP, HTML, CSS and JavaScript files, it highlights the syntax and gives hints for tags, functions and their parameters. This editor easily deals with those files that contain a mixed content. If you insert PHP code in your HTML template, then the editor correctly hig...

   IDE,CODELOBSTER,PHP,HTML     2019-07-27 09:37:14

  Productivity tips for freelance web designers

There are lots of great things about freelance, such as not being tied to a desk, flexible working hours and little, if any, supervision. All freelance web designers probably realize that one of the biggest challenges of their job is the issue of productivity. How to motivate yourself and stay productive every day with no external supervisors telling us to complete a task right now? Here are five practical productivity hacks for all freelance web designers who want to boost their performance. 1....

   productivity tips, freelance, web designers, productivity hacks     2015-02-13 01:40:29

  Alibaba Cloud was down again just after Singles' Day promotion

On November 12th, several popular Alibaba platforms and services experienced technical issues, causing widespread disruption and becoming hot topics on Weibo, the Chinese equivalent of Twitter. These services include Taobao, Xianyu, DingTalk, Aliyun Drive etc. Users took to social media to report instances of "Taobao crashing." Some encountered code display errors on the shopping page, while others faced a blank screen. However, a few users claimed they were still able to shop without any prob...

   ALIBABA CLOUD,ALIYUN,DOWN     2023-11-12 21:44:16

  Accessing Reddit top posts using OAuth

Previously one can use the https://www.reddit.com/r/rprogramming/top.json API to access one subreddit's top posts. This API doesn't require any access token to fetch the data. However, this API may not work all the time. Reddit may block the API's request if it finds that you are using a script or some app which accesses the API now and then. For an app or script which needs to fetch the data routinely, what should we do? Reddit provides one method which can be used to fetch this kind of to...

   REDDIT,OAUTH,TOP POSTS,HOT POSTS     2023-12-16 07:24:14

  The magic of go:linkname

When writing Go program, there is frequent need on using time.Sleep() function to pause the logic for some time. And if jumping to the definition of this function, can see below definition: // Sleep pauses the current goroutine for at least the duration d. // A negative or zero duration causes Sleep to return immediately. func Sleep(d Duration) I's strange that there is no function body defined here. What happened? The actual definition of the function body is residing at runtime/time.go&nb...

   TRICKS,GO:LINKNAME,GOLANG     2022-04-10 08:39:00

  Signature sign/verification demo in Java

Digital signature is commonly used in areas where data authentication and integrity are required. It is extremely important to have signature while transferring sensitive data from one peer to other peers through network since there might be malicious applications or man-in-the-middle attacks which may alter the data along the way. Java provides some APIs to generate and verify digital signature. One important class is Signature.  When generating the signature, a private key needs to be pa...

   SECURITY,JAVA,SIGNATURE     2015-11-21 09:48:12

  The internals of slice in GoLang

There are 3 components of slice:a) Pointer: Points to the start position of slice in the underlying array;b) length (type is int): the number of the valid elements of the slice;b) capacity (type is int): the total number of slots of the slice. Check the following code: package main import ( "fmt" "unsafe" ) func main() { var s1 []int fmt.Println(unsafe.Sizeof(s1)) } The result is 24 on my 64-bit system (The pointer and int both occupy 8 bytes). In the next example, I will use gdb to poke t...

   GOLANG,SLICE     2019-06-30 02:55:22

  9 fields platform companies need to fight for

If you are person reading technology news much, you will find a large part of the tech news are about a few companies : Apple, Google, Facebook, Amazon and Microsoft, in which the first four are today's "Big Four (platform)" as said by Google Chairman Eric Schmidt. These giants have both competition and cooperation in many areas, and each has its own place in the world, with Schmidt's words, Google dominates search, Apple designs device, Amazon occupies e-commerce and Facebook leads social. Alth...

   Big four, Future,Software and hardware     2012-10-20 09:50:43

  Can a === 1 && a === 2 && a === 3 be true in JavaScript?

Lots of you may be aware that there is famous interview question which asks whether a == 1 && a == 2 && a == 3 can be true in JavaScript. And the answer to this question is YES. The reason is that == will do a non-strict comparison which will evaluate a to a number and this provides the possibility of dynamically return the value when every time a is accessed. Have you ever wondered whether a === 1 && a === 2 && a === 3 can be true? At first glance, it seems this ...

   JAVASCRIPT,===,STRICT COMPARISON     2018-04-06 12:17:29

  When will resizing be triggered in Java HashMap?

HashMap is one of the most frequently used collection types in Java, it stores key-value pairs. Ideally it expects to use hash table which expects the data access time complexity to be O(1), however, due to hash conflicts, in reality, it uses linked list or red-black tree to store data which makes the worst case time complexity to be O(logn).  Although collections are using data structures like arrays and linked lists, unlike arrays, they will dynamically resize when there is not enough spa...

   JAVA,RESIZE,HASHMAP,THRESHOLD     2020-05-02 20:41:19

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