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What is the difference between a pseudo-class and a pseudo-element in CSS?
...-class while a user interacts with the document.
Source
What does this mean?
The important nature of pseudo-classes is stated in the very first sentence: "the pseudo-class concept [...] permit selection". It enables the author of an stylesheet to differ between elements based on information tha...
What is the difference between connection and read timeout for sockets?
...rror will be raised.
2) What does connection timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
It means that the connection attempt can potentially block for ever. There is no infinite loop, but the attempt...
How can I add a third button to an Android Alert Dialog?
...Treukhov - If the dialog has a positive button and a negative button, that means the dialog has two buttons. Adding the neutral button would give the dialog the third button. This is essentially what the top two answers to this question are doing.
– d60402
Aug ...
Where did the name `atoi` come from?
...
It means Ascii to Integer. Likewise, you can have atol for Ascii to Long, atof for Ascii to Float, etc.
A Google search for 'atoi "ascii to integer"' confirms this on several pages.
I'm having trouble finding any official sou...
When to use “ON UPDATE CASCADE”
...
Yes, it means that for example if you do UPDATE parent SET id = 20 WHERE id = 10 all children parent_id's of 10 will also be updated to 20
If you don't update the field the foreign key refers to, this setting is not needed
Can't thin...
Can a for loop increment/decrement by more than one?
...
A for loop:
for(INIT; TEST; ADVANCE) {
BODY
}
Means the following:
INIT;
while (true) {
if (!TEST)
break;
BODY;
ADVANCE;
}
You can write almost any expression for INIT, TEST, ADVANCE, and BODY.
Do note that the ++ operators and variants are operat...
MySQL Removing Some Foreign keys
...If you have any error message to create another index like the last one, I mean with the same name, it would be useful dropping everything related to that index.
ALTER TABLE your_table_with_fk
drop FOREIGN KEY name_of_your_fk_from_show_create_table_command_result,
drop KEY the_same_name_as_abov...
How To Create Table with Identity Column
...
what is the meaning of the parameters IDENTITY(1,1)
– otc
Jul 31 '17 at 16:17
4
...
How to upgrade PowerShell version from 2.0 to 3.0
...nd none of the 4 downloads on the page you've linked to "work". By that, I mean that when I run the installer, it says "This update is not applicable to your computer. " and I know from checking version that I am still on PowerShell 2.
– Shiva
Sep 3 '15 at 20:5...
How to skip to next iteration in jQuery.each() util?
...
What they mean by non-false is:
return true;
So this code:
var arr = ["one", "two", "three", "four", "five"];
$.each(arr, function(i) {
if (arr[i] == 'three') {
return true;
}
console.log(arr[i]);
});
<scrip...