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Learning Python from Ruby; Differences and Similarities
...rate using multiple indexes. For example, to find all the palindromes in a string (assuming you have a function p() that returns true for palindromes), all you need is a single list comprehension:
s = 'string-with-palindromes-like-abbalabba'
l = len(s)
[s[x:y] for x in range(l) for y in range(x,l+1...
How to tell bash that the line continues on the next line
... In this case, without a backslash, you are simply adding a newline to the string.
$ x="foo
> bar"
$ echo "$x"
foo
bar
With a backslash, you are again splitting the logical line into multiple logical lines.
$ x="foo\
> bar"
$ echo "$x"
foobar
...
How to “log in” to a website using Python's Requests module?
...e script when trying to log into sites with unverified SSL certificates.
Extra:
To run this script from the command line on a UNIX based system place it in a directory, i.e. home/scripts and add this directory to your path in ~/.bash_profile or a similar file used by the terminal.
# Custom scrip...
sqlite alter table add MULTIPLE columns in a single statement
...und for adding multiple columns using the benefit of transactions in SQL.
String alterTableQuery = "ALTER TABLE " + TABLE_NAME + " ADD COLUMN ";
List<String> newColumns = ..// Your new columns
db.beginTransaction();
for (String column : newColumns){
db.execSQL(alterTableQuery + column + ...
What does %w(array) mean?
... shortcut for ["foo", "bar"]. Meaning it's a notation to write an array of strings separated by spaces instead of commas and without quotes around them. You can find a list of ways of writing literals in zenspider's quickref.
...
Parse RSS with jQuery
...
Why the $this.find("link").text() always returns empty string ''?
– Jeff Tian
Oct 3 '14 at 11:56
@...
How do I update a GitHub forked repository?
...
@JohnY Using GitHub will always create an extra commit. You need to do all this in a shell on a local repo to avoid that extra commit.
– Jonathan Cross
Oct 14 '16 at 21:51
...
Check that an email address is valid on iOS [duplicate]
...
Good cocoa function:
-(BOOL) NSStringIsValidEmail:(NSString *)checkString
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9...
Remove a string from the beginning of a string
I have a string that looks like this:
11 Answers
11
...
Passing Data between View Controllers
...oryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:@"showDetailSegue"]){
ViewControllerB *controller = (ViewControllerB *)segue.destinationViewController;
controller.isSomethingEnabled = YES;
}
}
If you have your views embedded in a navigation con...