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Float vs Decimal in ActiveRecord
...ever to use floats for currency.
The reason for that is how the IEEE specification defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to st...
What are the benefits to marking a field as `readonly` in C#?
...nly? Is it just protecting against someone changing its value during the lifecycle of the class or does using this keyword result in any speed or efficiency improvements?
...
Adjust width and height of iframe to fit with content in it
I need a solution for auto-adjusting the width and height of an iframe to barely fit its content. The point is that the width and height can be changed after the iframe has been loaded. I guess I need an event action to deal with the change in dimensions of the body contained in the iframe...
How do I get a human-readable file size in bytes abbreviation using .NET?
...
This is not the most efficient way to do it, but it's easier to read if you are not familiar with log maths, and should be fast enough for most scenarios.
string[] sizes = { "B", "KB", "MB", "GB", "TB" };
double len = new FileInfo(filename).Length;
int order = 0;
while (len >= 1024 &&a...
Beyond Stack Sampling: C++ Profilers
...ue will reveal portions of your code that are CPU bound. Which is awesome if that is the bottle neck in your application. Not so great if your application threads spend most of their time fighting over a mutex.
A time sampling profiler grabs a stack trace every N microseconds.
This technique will ...
Android destroying activities, killing processes
... not be resumed until this method
returns. Followed by either onResume() if the activity returns back to
the front, or onStop() if it becomes invisible to the user.
onStop() Called when the activity is no longer visible to the user, because another activity has been resumed and is covering ...
How to delete the last n commits on Github and locally?
...ally I'd suggest using:
git reset --hard HEAD^^
Rebase is a completely different operation that won't help you here.
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What is the common header format of Python files?
...y, e.g. in a CGI context.
Next should be the docstring with a description. If the description is long, the first line should be a short summary that makes sense on its own, separated from the rest by a newline.
All code, including import statements, should follow the docstring. Otherwise, the docstr...
How can I set focus on an element in an HTML form using JavaScript?
...
Do this.
If your element is something like this..
<input type="text" id="mytext"/>
Your script would be
<script>
function setFocusToTextBox(){
document.getElementById("mytext").focus();
}
</script>
...
Block Comments in a Shell Script
...
Just a tip - if you're using vim and this ends up highlighting the beginning of every line, add |noh to the end. The pipe separates additional commands and noh is for nohighlight. Search term highlighting will automatically resume the nex...