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_=> what does this underscore mean in Lambda expressions?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Is it true that one should not use NSLog() on production code?
...ce, you could have a logging class that writes to its own log file (or database), and includes a 'priority' argument you could set at runtime, so debug messages are not shown in your release version, but error messages are (if you did this you could make DebugLog(), WarningLog(), and so on).
Oh, an...
Django templates: verbose version of a choice
I have a model:
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Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?
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mongodb count num of distinct values per field/key
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Creating JS object with Object.create(null)?
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How to generate random SHA1 hash to use as ID in node.js?
... do this by generating 1 million random numbers and incrementing a counter based on the .length of each number.
// get distribution
var counts = [], rand, len;
for (var i=0; i<1000000; i++) {
rand = Math.random();
len = String(rand).length;
if (counts[len] === undefined) counts[len] = 0;
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Variable interpolation in the shell
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Changing the background drawable of the searchview widget
...to get into it's internals, acquire access to view that has background set based on searchViewTextField and set our own.
NOTE: Solution below depends only on id (android:id/search_plate) of element within SearchView, so it's more SDK-version independent than children traversal (e.g. using searchVie...
Reading a huge .csv file
... dataframes for later concatenation
df_lst = []
# Iterate over the file based on the criteria and append to the list
for df_ in df_iter:
tmp_df = (df_.rename(columns={col: col.lower() for col in df_.columns}) # filter eg. rows where 'col_1' value grater than one
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