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How do I find out if first character of a string is a number?
...ion is not Java. 2) This only allows Arabic numerals, not Chinese, Indian, etc. That might be what you prefer, but it isn't specified in the question. 3) I already covered this exact solution in my answer four years ago.
– Michael Myers♦
May 23 '13 at 15:44
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What does a tilde do when it precedes an expression?
...needed ++ and -- in a while because of primitive methods like map, forEach etc. My point is more about why they didn't also consider ~ excessively tricky when whatever standard used includes increment and decrement operators. To forbid something so CIS101 doesn't make any sense.
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Difference between jQuery’s .hide() and setting CSS to display: none
...viously takes more time to run as it checks for callback functions, speed, etc...
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SQL Server NOLOCK and joins
...as such it applies to the rowset to which is being added (table, view, TVF etc). If you have multiple rowsets joined in a query, each one would need its own NOLOCK hint.
– Remus Rusanu
Sep 24 '10 at 17:08
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How to send password securely over HTTP?
...pute the response on the client side with javascript (or Flash/Silverlight/etc.)
– orip
Oct 17 '09 at 18:42
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What's the best way to iterate over two or more containers simultaneously
... start over; or some other pattern; or more than two containers at a time; etc ...
However, if you wanted to make your own "for_each" style function that iterates through two containers only up to the length of the shortest one, you could do something like this:
template <typename Container1, t...
How can I cast int to enum?
...u know how it roughly translates to f.ex. processor operations and memory fetches / writes. If you ask how to get to that level, I'd suggest building a ton of small test cases, making them tougher as you go, try to predict the outcome every time, and test them afterwards (incl. decompilation, etc). ...
What does axis in pandas mean?
...0,:,:] will refer to the 0-th slice, a[1,:,:] will refer to the 1-st slice etc.
a.sum(axis=0) will apply sum() along the 0-th axis of a. You will add all the slices and end up with one slice of shape (5,7).
a.sum(axis=0) is equivalent to
b = np.zeros((5,7))
for i in range(5):
for j in range(...
Pointer to class data member “::*”
...re calculating a summary statistic on a time series, or calculating an FFT etc, then you should store the values for each variable contiguously in memory. Otherwise, iterating over the series will cause a cache miss for every value retrieved.
Consider the performance of this code:
struct Sample {...
How to load program reading stdin and taking parameters in gdb?
...s ...' just gives you the chance to interactively define some break points etc. before running the program
– maxschlepzig
Apr 17 '16 at 7:32
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