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href=“tel:” and mobile numbers
... but there is no reason you would not add the simple "+" to make them work from everywhere! (tel:+1847... would work for calling a US number from anywhere in the world).
– Ecuador
May 4 '17 at 13:42
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How to implement an STL-style iterator and avoid common pitfalls?
...riterator>, or put the same typedefs in the iterator itself, or inherit from std::iterator (which has these typedefs). I prefer the second option, to avoid changing things in the std namespace, and for readability, but most people inherit from std::iterator.
struct std::iterator_traits<youri...
How to create a sub array from another array in Java?
How to create a sub-array from another array? Is there a method that takes the indexes from the first array such as:
9 Answ...
Why does a return in `finally` override `try`?
... I too disagree about the one return rule. You should never return from finally, though (in C#, it's not even allowed).
– erikkallen
Oct 1 '10 at 10:58
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eclipse stuck when building workspace
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Go to Window - Show View - Other - General - Error Log from the file menu in Eclipse. You can also get to it from Help - about Eclipse - installation details - configuration tab - View Error Log button.
– James Drinkard
Feb 23 '18 at 21:03
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Get IP address of visitors using Flask for Python
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See the documentation on how to access the Request object and then get from this same Request object, the attribute remote_addr.
Code example
from flask import request
from flask import jsonify
@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
return jsonify({'ip': request.remote...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
... dictionaries x and y, z becomes a shallowly merged dictionary with values from y replacing those from x.
In Python 3.5 or greater:
z = {**x, **y}
In Python 2, (or 3.4 or lower) write a function:
def merge_two_dicts(x, y):
z = x.copy() # start with x's keys and values
z.update(y) # m...
What's the difference between struct and class in .NET?
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another crucial difference is usage. From MSDN: "structs are typically used to encapsulate small group of related variables, such as coordinates of rectangle. Structs can also contain constructors, constants, fields, methods, properties, indexers, operators, eve...
Accidentally committed .idea directory files into git
...se I need to checkout my repo. I was wondering how do I remove these files from the remote?
4 Answers
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How to read a file line-by-line into a list?
...dure mentioned here. The memory usage is far better when each line is read from the file and processed, as suggested by @DevShark here. Holding all lines in a collection object is not a good idea if memory is a constraint or the file is large. The execution time is similar in both the approa...