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Explain ExtJS 4 event handling
...js4.1)
Lets say we have a controller Station (Sencha MVC examples) with a select box:
Ext.define('Pandora.controller.Station', {
extend: 'Ext.app.Controller',
...
init: function() {
this.control({
'stationslist': {
selectionchange: this.onStationSel...
How to pass anonymous types as parameters?
...is an anonymous type right? I'm thinking of a case where someone writes a "Select * from" statement and uses an anonymous (or defined) class to define which columns from the query result map to the same named properties on your anonymous object.
– C. Tewalt
Apr...
MYSQL OR vs IN performance
...for future Googlers. Total count of returned results is 7264 out of 10000
SELECT * FROM item WHERE id = 1 OR id = 2 ... id = 10000
This query took 0.1239 seconds
SELECT * FROM item WHERE id IN (1,2,3,...10000)
This query took 0.0433 seconds
IN is 3 times faster than OR
...
What is SQL injection? [duplicate]
...ue for any language), which might be used to handle a user login.
$sql = "SELECT FROM users WHERE username='".$_GET['username']."' AND password='".$_GET['password']."'";
The harm is done when the user enters something like
administrator'; --
... for the username. Without proper encoding the...
How do I temporarily disable triggers in PostgreSQL?
...ct = 'disable';
else
act = 'enable';
end if;
for r in select c.relname from pg_namespace n
join pg_class c on c.relnamespace = n.oid and c.relhastriggers = true
where n.nspname = nsp
loop
execute format('alter table %I %s trigger all', r.relname, act)...
What is the type of lambda when deduced with “auto” in C++11?
...ually make use of __PRETTY_FUNCTION__, as in template<class T> const char* pretty(T && t) { return __PRETTY_FUNCTION__; }, and strip off the extra if it starts to get crowded. I prefer to see the steps shown in template substitution. If you're missing __PRETTY_FUNCTION__, there are alt...
How to add display:inline-block in a jQuery show() function?
...one'); // you could still use `.hide()` here
$('.tabs a').removeClass("selected");
var id = obj.attr("rel");
$('#' + id).css('display', 'inline-block');
obj.addClass("selected");
}
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How to play with Control.Monad.Writer in haskell?
...ype of logNumber is logNumber :: (Show a, Monad m) => a -> WriterT [[Char]] m a for me.
– kmikael
May 27 '15 at 20:15
...
Remove empty lines in text using Visual Studio
...t + T + O
Under Environment tab > Keyboard
Search for "DeleteBlank" and select Edit.DeleteBlankLines
Add a new shortcut for example Ctrl+D,Ctrl+E
Assign > OK
select all text and hit the shortcut
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How to Concatenate Numbers and Strings to Format Numbers in T-SQL?
...
select 'abcd' + ltrim(str(1)) + ltrim(str(2))
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