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Why does the default parameterless constructor go away when you create one with parameters
...static class, I most likely want to be able to instantiate that class. In order to allow that, the compiler must add a parameterless constructor, which will have no effect but to allow instantiation. This means that I don't have to include an empty constructor in my code just to make it work.
If I...
Calculate date from week number
... As we're adding days to a date in Week 1,
// we need to subtract 1 in order to get the right date for week #1
if (firstWeek == 1)
{
weekNum -= 1;
}
// Using the first Thursday as starting week ensures that we are starting in the right year
// then we add number of w...
Scraping html tables into R data frames using the XML package
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Why do you program in assembly? [closed]
...e accelerator architecture like manually moving data in and out in certain order.
I doubt many people use assembly language when a higher-level language would do, especially when that language is C. Hand-optimizing large amounts of general-purpose code is impractical.
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missing private key in the distribution certificate on keychain
... Basically, we have a company developer account (not enterprise) and so in order to submit our app, I requested from our team lead to send me the distribution certificate and create and send me a distribution provisioning profile.
...
Why shouldn't I use mysql_* functions in PHP?
...eceded by a colon, instead of question marks. We don't care about position/order of value in name place holder:
$stmt->bindParam(':bla', $bla);
bindParam(parameter,variable,data_type,length,driver_options)
You can also bind using an execute array as well:
<?php
$stmt = $db->prepare("S...
Must Dependency Injection come at the expense of Encapsulation?
... should be fully valid after construction, such that anything they need in order to perform their role (i.e. be in a valid state) should be supplied through the constructor anyway. If you have an object that requires a collaborator to work, it seems fine to me that the constructor publically advert...
Cosine Similarity between 2 Number Lists
... (more of a matrix transpose, actually) just to get the data in "Pythonic" order. It would be interesting to time the nuts-and-bolts implementation:
import math
def cosine_similarity(v1,v2):
"compute cosine similarity of v1 to v2: (v1 dot v2)/{||v1||*||v2||)"
sumxx, sumxy, sumyy = 0, 0, 0
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How to plot two columns of a pandas data frame using points?
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How to save a Python interactive session?
... Use "ipython -i [filename]" on the saved .py file, from the bash promt in order to load the file back before returning to an interactive console! (without the -i flag you don't get the interactive console after running the file).
– Samuel Lampa
Nov 29 '12 at 1...