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SEARCH KEYWORD -- Dynamic language

  A mini guide to HTTP referer

In HTTP header, there is a field named Referer which is to provide the referrer of the current accessed page. In this post, we will introduce the usage of HTTP referer field. On the web, when a user visits a webpage, s/he must be from some place. This place is usually referred a s referer. This information is very important to some website operators and server owners as they want to know where they get the traffic from and this helps them provide better service for potential targeted users. In t...

   HTML,HTTP REFERER,REFERRERPOLICY     2019-06-29 02:23:25

  Buffcacher

What should a ‘cache’ be? It means a lot of things, but to my mind the default programming type should be: “keep around expensive-to-generate bits of read-only data in case we need them again, or until the computer really needs that RAM for something else” I was writing a custom video editing program in Python (interesting choice of language for that problem) and I wanted to cache decoded frames; but I just wasn’t happy with the memory management of explici...

   Buffer,Cache,Web browser,Memory,RAM     2012-02-24 05:10:10

  How to Create Dynamic PDF with Image and Content in Asp.Net Development?

Aegissofttech .net developers are specialized in developing real time web applications. While working on one of such real time web app development projects, our asp.net development team discovered an easy way to create PDF template from user inputs. The developers used Java Script and web service to accomplish PDF template development. To learn how to develop these dynamic PDF with content and graphics, you can follow the below tutorial. In real time web applications, we often require to generat...

   asp.net development,     2015-04-27 01:11:40

  The roots of Lisp

(I wrote this article to help myself understand exactly what McCarthy discovered. You don't need to know this stuff to program in Lisp, but it should be helpful to anyone who wants to understand the essence of Lisp-- both in the sense of its origins and its semantic core. The fact that it has such a core is one of Lisp's distinguishing features, and the reason why, unlike other languages, Lisp has dialects.)In 1960, John McCarthy published a remarkable paper in which he did for programming somet...

   Lips,Root,McCarthy,AI,Artificial Intelligence     2011-10-25 10:35:13

  Demo on creating worker pool in GoLang

A worker pool is a pool where a specified number of workers(usually goroutine) created and run to pick up tasks. This can allow multiple tasks to be ran at the same time while keeping the number of workers a fixed number to avoid overuse of resource in the program. There are usually two approaches of creating worker pool. One is with fixed number of workers pre-created One is creating worker when needed until the max number of workers created In this post, we will cover the demonstration of cr...

   WORKER POOL,GOLANG,GOROUTINE     2021-01-24 05:04:00

  C/C++ Pointer Declaration Syntax – It makes sense!

I never really liked the way pointers are declared in C/C++: int *a, *b, *c; // a, b and c are pointers to int The reason is that I am used to reading variable declarations as MyType myVar1, myVar2, myVar3; and I always read “int*” as the type “integer pointer”. I therefore wanted the following int* a, b, c; // a is a pointer to int, b and c are ints to mean that a, b and c all were of type int*, i.e. pointers to int. and I therefore found it slightly a...

   C,Pointer,Declaration,Attempt     2012-02-22 05:43:58

  Resolve git issue git@github.com: Permission denied (publickey)

Sometimes when clone a remote repository from github.com, you may see below error. D:\Project\Playground\GitBisect>git clone git@github.com:bradleyboy/bisectercise.git Cloning into 'bisectercise'... git@github.com: Permission denied (publickey). fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. The issue occurs when there is no key on your machine which is associated with your github account. To fix the issue, please ...

   GIT,GITHUB,PERMISSION DENIED,PUBLIC KEY     2019-07-12 10:10:49

  I've run out of adjectives

The news of Dennis Ritchie's passing hit hard. So much has been written in the past day. His impact was enormous, and outside the tech world, mostly unknown - but very much felt. C underpins everything. My whole career has grown out of C and Unix. Wow.For most engineers working today, it's hard to understand the euphoria I felt in the 70s when a programming language finally came along that I (and everyone else) could use to move up from writing in assembler to a real programming l...

   Dennis Ritchie,James Gosling,Death,Praise,Comment,C     2011-10-20 02:55:58

  An experience on fixing HTTP 406 Not Acceptable error

This post is about an experience of mine on fixing a HTTP 406 Not Acceptable error seen on one of my page. Just got back from a business trip and opened my computer as usual to start to monitor my website statistics. But when I opened the page on showing real time page views, it shows nothing but zero. So I pressed F12 to bring up the developer tool to check on what's going on. The logic of loading the real time page view is backed by AJAX call. In the developer tool console, I see that the rAJA...

   PHP,AJAX,HTML,HTTP 406,CONTENT-TYPE     2019-03-30 04:09:10

  What is the use of empty struct in GoLang

In Go, an empty struct struct{} is a struct with no fields that may appear to be of little use, but in reality, it can be useful in certain situations and become a simple and efficient solution in code. As a semaphore or lock Because the empty struct has no fields, it can be conveniently used to implement some concurrency control functions, such as mutex locks, read-write locks. We can use chan struct{} to implement an unbuffered channel for controlling concurrent access. package main import ( ...

   GOLANG,EMPTY STRUCT     2024-04-05 23:54:03

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