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Print text instead of value from C enum
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If I were relying on using the enumerations as indexes, I would actually prefer to explicitly number each one. Unnecessary according to standards, but as a group compilers have not exactly been the best at following standards in my experience.
– jdmi...
JavaScript: replace last occurrence of text in a string
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You can use String#lastIndexOf to find the last occurrence of the word, and then String#substring and concatenation to build the replacement string.
n = str.lastIndexOf(list[i]);
if (n >= 0 && n + list[i].length >= str.length) {
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Meaning of Open hashing and Closed hashing
...e rest helps).
For instance, the "open" in "open addressing" tells us the index (aka. address) at which an object will be stored in the hash table is not completely determined by its hash code. Instead, the index may vary depending on what's already in the hash table.
The "closed" in "closed ha...
How to pass the value of a variable to the stdin of a command?
... you handle blah=-n, blah=-e... use printf instead. unix.stackexchange.com/questions/65803/…
– Camilo Martin
Jun 22 '14 at 4:33
1
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LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
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Joining on multiple columns in Linq to SQL is a little different.
var query =
from t1 in myTABLE1List // List<TABLE_1>
join t2 in myTABLE1List
on new { t1.ColumnA, t1.ColumnB } equals new { t2.ColumnA, t2.ColumnB }
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You have to t...
Setting the MySQL root user password on OS X
I just installed MySQL on Mac OS X. The next step was setting the root user password, so I did this next:
23 Answers
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What is the purpose of setting a key in data.table?
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A key is basically an index into a dataset, which allows for very fast and efficient sort, filter, and join operations. These are probably the best reasons to use data tables instead of data frames (the syntax for using data tables is also much mo...
Postgresql query between date ranges
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This structure also has the advantage of being able to maintain use of indexes.
Many people may suggest a form such as the following, but they do not use indexes:
WHERE
DATEPART('year', login_date) = 2014
AND DATEPART('month', login_date) = 2
This involves calculating the conditio...
Converting XML to JSON using Python?
...mapping between XML and JSON, so converting one to the other necessarily requires some understanding of what you want to do with the results.
That being said, Python's standard library has several modules for parsing XML (including DOM, SAX, and ElementTree). As of Python 2.6, support for converti...
Changing default encoding of Python?
... help for running existing applications (which is one way to interpret the question), is wrong when you are writing/maintaining an application and dangerous when writing a library. The right way is to set LC_CTYPE (or in an application, check whether it is set right and abort with a meaningful error...