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sprintf like functionality in Python
...uld like to create a string buffer to do lots of processing, format and finally write the buffer in a text file using a C-style sprintf functionality in Python. Because of conditional statements, I can’t write them directly to the file.
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Should I use #define, enum or const?
...when running, the less damage it can do.
Here are some examples to put it all together.
void showRecords(TRecordType mask) {
assert(RecordType::IsValidMask(mask));
// do stuff;
}
void wombleRecord(TRecord rec, TRecordType state) {
assert(RecordType::IsValidState(state));
if (Recor...
How can I change an element's class with JavaScript?
...r, going into detail on this is beyond the scope of the answer.
To change all classes for an element:
To replace all existing classes with one or more new classes, set the className attribute:
document.getElementById("MyElement").className = "MyClass";
(You can use a space-delimited list to app...
Insert code into the page context using a content script
...example one and two. If you don't have to use chrome.* APIs, simply inject all of your JS code in the page by adding a <script> tag as shown below.
Safety warning:
A page may redefine or augment/hook a built-in prototype so your exposed code may fail if the page did it in an incompatible fashi...
How to compare DateTime in C#?
...
MuSTaNG's answer says it all, but I am still adding it to make it a little more elaborate, with links and all.
The conventional operators
greater than (>),
less than (<),
equality (==),
and more
are available for DateTime since .NET Framewor...
When converting a project to use ARC what does “switch case is in protected scope” mean?
...en a while, but I seem to remember something in the C standard that didn't allow variable assignment after a case statement because the code is not really inside of a block. By adding curly braces {...} after the case and before the break, everything inside is in a scoped block and will behave as e...
Why is debugging better in an IDE? [closed]
...hat an IDE debugger will give you over trace messages in code:
View the call stack at any point in time, giving you a context for your current stack frame.
Step into libraries that you are not able to re-compile for the purposes of adding traces (assuming you have access to the debug symbols)
Chan...
Java logical operator short-circuiting
...
In fact, to be really complete, all of &&, ||, & and | evaluate left to right. For a set of booleans b1, b2, ..., bn, the short circuit versions will cease evaluation when the first of these booleans is true (||) or false (&&a...
Representing Monetary Values in Java [closed]
...
BigDecimal all the way. I've heard of some folks creating their own Cash or Money classes which encapsulate a cash value with the currency, but under the skin it's still a BigDecimal, probably with BigDecimal.ROUND_HALF_EVEN rounding.
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Creating dataframe from a dictionary where entries have different lengths
... holds a numpy array. However, the length of the array is not the same for all of them.
9 Answers
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