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How to pass command line arguments to a shell alias? [duplicate]
...osted for other shells, in Bash the following works:
alias blah='function _blah(){ echo "First: $1"; echo "Second: $2"; };_blah'
Running the following:
blah one two
Gives the output below:
First: one
Second: two
shar...
Best practices for in-app database migration for Sqlite
...t/set this variable with the following sqlite statements:
> PRAGMA user_version;
> PRAGMA user_version = 1;
When the app starts, I check the current user-version, apply any changes that are needed to bring the schema up to date, and then update the user-version. I wrap the updates in a t...
Loop through properties in JavaScript object with Lodash
...
var value = myObject.options[key];
}
}
Edit: the accepted answer (_.forOwn()) should be https://stackoverflow.com/a/21311045/528262
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What exactly are late static bindings in PHP?
...self::, parent::, static::, or, if going up in the class hierarchy, forward_static_call(). The function get_called_class() can be used to retrieve a string with the name of the called class and static:: introduces its scope.
...
MySQL check if a table exists without throwing an exception
...PDO syntax for it, but this seems pretty straight-forward:
$result = mysql_query("SHOW TABLES LIKE 'myTable'");
$tableExists = mysql_num_rows($result) > 0;
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How to intercept click on link in UITextView?
...View shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange *NS_DEPRECATED_IOS(7_0, 10_0, "Use textView:shouldInteractWithURL:inRange:forInteractionType: instead");*
to intercept the clicks to links. And this is the best way to do it.
For ios6 and earlier a nice way to do this is to b...
What is the size of an enum in C?
... having only that, the following is valid i think: enum { LAST = INT_MAX, LAST1, LAST2 }; so LAST2 is not representable in int, but there wasn't an expression defining it.
– Johannes Schaub - litb
Dec 14 '08 at 1:33
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Regular expression for a string that does not start with a sequence
...ng this program , but I need to ignore ones that start with the label "tbd_". So far I have something like [^tbd_] but that simply not match those characters.
...
Selecting multiple columns in a pandas dataframe
...ou can just return a view of only those columns by passing a list into the __getitem__ syntax (the []'s).
df1 = df[['a', 'b']]
Alternatively, if it matters to index them numerically and not by their name (say your code should automatically do this without knowing the names of the first two columns)...
Insert into … values ( SELECT … FROM … )
...SERT from another table I did the following in SQLite3:
INSERT INTO column_1 ( val_1, val_from_other_table )
VALUES('val_1', (SELECT val_2 FROM table_2 WHERE val_2 = something))
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