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Is \d not supported by grep's basic expressions?
...'s -E mode does not. That's so glaring I'm shocked I'm just discovering it now.
– Keith Tyler
Jun 23 '16 at 0:20
1
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How do I connect to a MySQL Database in Python?
... documentation. A good starting point.
3 - More advanced usage
Once you know how it works, You may want to use an ORM to avoid writing SQL manually and manipulate your tables as they were Python objects. The most famous ORM in the Python community is SQLAlchemy.
I strongly advise you to use it: ...
Android Shared preferences for creating one time activity (example) [closed]
...les just too confusing, so I wrote my own. Code fragments are fine if you know what you're doing, but what about people like me who don't?
Want a cut-n-paste solution instead? Well here it is!
Create a new java file and call it Keystore. Then paste in this code:
import android.content.Context...
Can't use Swift classes inside Objective-C
...sa. I marked my swift class with @objc but it didn't help. What can I do now?
25 Answers
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Creating a new DOM element from an HTML string using built-in DOM methods or Prototype
...oduced the <template> element which can be used for this purpose (as now described in the WhatWG spec and MDN docs).
A <template> element is used to declare fragments of HTML that can be utilized in scripts. The element is represented in the DOM as a HTMLTemplateElement which has a .con...
How do you pass a function as a parameter in C?
... the print function to it.
Function Body
As with any parameter, func can now use the parameter's name in the function body to access the value of the parameter. Let's say that func will apply the function it is passed to the numbers 0-4. Consider, first, what the loop would look like to call print...
Providing a default value for an Optional in Swift?
...
Update
Apple has now added a coalescing operator:
var unwrappedValue = optionalValue ?? defaultValue
The ternary operator is your friend in this case
var unwrappedValue = optionalValue ? optionalValue! : defaultValue
You could also pr...
C# Double - ToString() formatting with two decimal places but no rounding
...094.7563) / 100;
- 5094 / 100
- 50.94
And there's your answer truncated, now to format the string simply do the following:
string s = string.Format("{0:N2}%", x); // No fear of rounding and takes the default number format
...
SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu
...ormatting the date to build the SQL statement. I had used Format(DateTime.Now, "yyyymmdd") when it should have been Format(DateTime.Now, "yyyyMMdd")
– Jay Imerman
Jan 12 '17 at 14:43
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What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
...
This will download any required dependencies and install http-server.
Use
Now, from any directory, you can type:
http-server [path] [options]
Path is optional, defaulting to ./public if it exists, otherwise ./.
Options are [defaults]:
-p The port number to listen on [8080]
-a The host address to ...