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How to study design patterns? [closed]
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you mentioned you read 3 books..did you read this one as well? amazon.com/… if so, what did you think?
– sivabudh
Apr 15 '09 at 20:00
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Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...ic networks. There are plenty of vendors, but my rule of thumb is to pick one that is a brand name in a way. The better they are known, the better your customer has probably heard of them.
Next you will want to find a payment gateway to use with your site. Although this can be optional depending...
About catching ANY exception
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Possible workaround: effbot.org/zone/stupid-exceptions-keyboardinterrupt.htm
– Mikel
Feb 14 '11 at 9:52
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Why are floating point numbers inaccurate?
...g point numbers are represented a lot like scientific notation: with an exponent and a mantissa (also called the significand). A very simple number, say 9.2, is actually this fraction:
5179139571476070 * 2 -49
Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is imp...
Apache Commons equals/hashCode builder [closed]
...t equals()):
a) in both versions of equals() above, you might want to use one or both of these shortcuts also:
@Override
public boolean equals(final Object obj){
if(obj == this) return true; // test for reference equality
if(obj == null) return false; // test for null
// continue as a...
Drop all duplicate rows across multiple columns in Python Pandas
...drop_duplicates function is great for "uniquifying" a dataframe. However, one of the keyword arguments to pass is take_last=True or take_last=False , while I would like to drop all rows which are duplicates across a subset of columns. Is this possible?
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C++ unordered_map using a custom class type as the key
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To be able to use std::unordered_map (or one of the other unordered associative containers) with a user-defined key-type, you need to define two things:
A hash function; this must be a class that overrides operator() and calculates the hash value given an object o...
Where is PATH_MAX defined in Linux?
...mits.h>
char current_path[PATH_MAX];
PATH_MAX has some flaws as mentioned in this blog (thanks paulsm4)
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Why are there two ways to unstage a file in Git?
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So typically, one would use git rm --cached <filePath> to remove some file(s) from the repo after realizing it should have never been in the repo: so most likely running this command & then adding the relevant files to gitignore....
How to get subarray from array?
...d. console.log(ar); // -> [1, 2, 3, 4, 5]
– daemonexmachina
Dec 18 '18 at 18:35
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