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What’s the purpose of prototype? [duplicate]
...r object creation, since that function does not have to be re-created each time a new object is created.
When you do this:
function animal(){
this.name = 'rover';
this.set_name = function(name){
this.name = name;
}
}
The set_name function is created de novo each and every ti...
What is the difference between “text” and new String(“text”)?
...essarily ==. It is usually wrong to use == on reference types; most of the time equals need to be used instead.
Nonetheless, if for whatever reason you need to create two equals but not == string, you can use the new String(anotherString) constructor. It needs to be said again, however, that this i...
How to append a char to a std::string?
...he append method is really more useful when adding the same character many times.
– Patrice Bernassola
Sep 24 '09 at 15:53
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Run certain code every n seconds [duplicate]
...uld go through whatever code I had, then once it had been 5 seconds (with time.sleep() ) it would execute that code. I would be using this to update a file though, not print Hello World.
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What is “(program)” in Chrome debugger’s profiler?
...
Regarding high % of program(), sometimes css animations lead to a high CPU usage, which will be reflected in program(). Unfortunately the profiler can't help pin point the source.
– ılǝ
Dec 15 '15 at 15:13
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Why is it slower to iterate over a small string than a small list?
I was playing around with timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
...
Return multiple columns from pandas apply()
... function that contains the new data, preventing the need to iterate three times. Passing axis=1 to the apply function applies the function sizes to each row of the dataframe, returning a series to add to a new dataframe. This series, s, contains the new values, as well as the original data.
def ...
What does 'synchronized' mean?
... More clearly: synchronized methods can't be called in the same time from multiple threads.
– peterh - Reinstate Monica
Mar 15 '16 at 12:35
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Add number of days to a date
...
This should be
echo date('Y-m-d', strtotime("+30 days"));
strtotime
expects to be given a string containing a US English date format and will try to parse that format into a Unix timestamp (the number of seconds since January 1 1970 00:00:00 UTC), relative ...
What's the equivalent of use-commit-times for git?
I need the timestamps of files on my local and on my server to be in sync. This is accomplished with Subversion by setting use-commit-times=true in the config so that the last modified of each file is when it was committed.
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