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Capture characters from standard input without waiting for enter to be pressed
...up so infrequently for me. But in C or C++, what is the best way to read a character from standard input without waiting for a newline (press enter).
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What's the best way to do a backwards loop in C/C#/C++?
...mpile time, if given a pointer:
template<typename T, std::size_t N> char (& array_size(T(&)[N]) )[N];
It works by getting the size of the passed array first, and then declaring to return a reference to an array of type char of the same size. char is defined to have sizeof of: 1. So ...
Removing all non-numeric characters from string in Python
How do we remove all non-numeric characters from a string in Python?
7 Answers
7
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What is the use of the square brackets [] in sql statements?
... want to Replace All in a script. If your batch contains a variable named @String and a column named [String], you can rename the column to [NewString], without renaming @String to @NewString.
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How can I find the last element in a List?
...on, how to address the last element of a List safely...
Assuming
List<string> myList = new List<string>();
Then
//NOT safe on an empty list!
string myString = myList[myList.Count -1];
//equivalent to the above line when Count is 0, bad index
string otherString = myList[-1];
"coun...
How can I use grep to find a word inside a folder?
... My searches for grep syntax shows I must specify the filename, i.e. grep string filename .
14 Answers
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How do I start Mongo DB from Windows?
...ith authentication.
mongo --username abcd --password abc123 --host server_ip_or_dns --port 27017
That's it !!!
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Tainted canvases may not be exported
...rom localStorage instead of loading from file or any url, then did some manipulation to it like adding a text. Then tried to sotre back it to localStorage using toDataURL(). But it shows "Failed to execute 'toDataURL' on 'HTMLCanvasElement': Tainted canvases may not be exported". In this case I am n...
Specify sudo password for Ansible
...ord that you used when creating your secret file. The password should be a string stored as a single line in the file.
From the Ansible Docs:
.. ensure permissions on the file are such that no one else can access your key and do not add your key to source control
Finally: you can now run your...
Is there a JavaScript function that can pad a string to get to a determined length?
...und this solution here and this is for me much much simpler:
var n = 123
String("00000" + n).slice(-5); // returns 00123
("00000" + n).slice(-5); // returns 00123
(" " + n).slice(-5); // returns " 123" (with two spaces)
And here I made an extension to the string object:
String.prototype.pa...