Adding a favicon to a static HTML page
You can make a .png image and then use one of the following snippets between the <head> tags of your static HTML documents:
How to install Visual C++ Build tools?
You can check Announcing the official release of the Visual C++ Build Tools 2015 and from this blog, we can know that the Build Tools are the same C++ tools that you get with Visual Studio 2015 but they come in a scriptable standalone installer that only lays down the tools you need to build C++ projects. … Read more
pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
Use the valgrind option –track-origins=yes to have it track the origin of uninitialized values. This will make it slower and take more memory, but can be very helpful if you need to track down the origin of an uninitialized value. Update: Regarding the point at which the uninitialized value is reported, the valgrind manual states: It is important to … Read more
What are the differences between Visual Studio Code and Visual Studio?
Visual Studio (full version) is a “full-featured” and “convenient” development environment. Visual Studio (free “Express” versions – only until 2017) are feature-centered and simplified versions of the full version. Feature-centered meaning that there are different versions (Visual Studio Web Developer, Visual Studio C#, etc.) depending on your goal. Visual Studio (free Community edition – since 2015) is a … Read more
How to generate a random number in C++?
The most fundamental problem of your test application is that you call srand once and then call rand one time and exit. The whole point of srand function is to initialize the sequence of pseudo-random numbers with a random seed. It means that if you pass the same value to srand in two different applications (with the same srand/rand implementation) then you will get exactly the same sequence of rand() values read after … Read more
SQL WITH clause example [duplicate]
The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as … Read more
SyntaxError: “can’t assign to function call”
Syntactically, this line makes no sense: You are attempting to assign a value to a function call, as the error says. What are you trying to accomplish? If you’re trying set subsequent_amount to the value of the function call, switch the order:
Interpreting “condition has length > 1” warning from `if` function
maybe you want ifelse:
Relative imports in Python 3
unfortunately, this module needs to be inside the package, and it also needs to be runnable as a script, sometimes. Any idea how I could achieve that? It’s quite common to have a layout like this… …with a mymodule.py like this… …a myothermodule.py like this… …and a main.py like this… …which works fine when you run main.py or mypackage/mymodule.py, but fails with mypackage/myothermodule.py, due to … Read more
How to fix ‘Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.’
I have the following error in the Chrome Dev Tools console on every page-load of my Node/Express/React application: Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist This error makes a reference to localhost/:1. When I hover over this, it shows http://localhost:3000/, the address I’m viewing the app at in the browser. Anyone … Read more