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Incrementing in C++ - When to use x++ or ++x?
...and please note that in a for loop, on primatives, there is absolutely no difference. Many coding styles will recommend never using an increment operator where it could be misunderstood; i.e., x++ or ++x should only exist on its own line, never as y=x++. Personally, I don't like this, but it's unco...
How to check whether an array is empty using PHP?
...comma separated list (or a single value). What is the easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it's empty, but for the sake of argum...
How to detect if a variable is an array
What is the best de-facto standard cross-browser method to determine if a variable in JavaScript is an array or not?
12 Ans...
jQuery: checking if the value of a field is null (empty)
Is this a good way to check if the value of a field is null ?
7 Answers
7
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Is JavaScript a pass-by-reference or pass-by-value language?
...itive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the o...
How can I force a long string without any blank to be wrapped?
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Watch if you do this in things that might be copied and pasted.
– alex
Jul 29 '14 at 0:25
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What is 'YTowOnt9'?
...do too, but when they are empty they are all the same. It makes it look as if a lot of very different PHP scripts have this random string in common.
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Using current time in UTC as default value in PostgreSQL
...orary table test(
id int,
ts timestamp without time zone default (now() at time zone 'utc')
);
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Resize HTML5 canvas to fit window
...is 125% is often related to Device Pixel Resolution adjustment. Basically, if you are on a high pixel density device, the font will appear smaller than it should... so it will scale up to make the font be normal sized. As far as I understand it. You can check the display using: window.devicePixelRat...
Should URL be case sensitive?
...There may be URLs, or parts of URLs, where case doesn't matter, but
identifying these may not be easy. Users should always consider that
URLs are case-sensitive.
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