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What's the difference between utf8_general_ci and utf8_unicode_ci?
..., utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version was given the name utf8mb4.
Note: Newer versions of MySQL have updated Unicode sorting rules, available under names such as utf8mb4_0900_ai_ci for equivalent rules based...
Vertically align text to top within a UILabel
...
myLabel.numberOfLines = 0;
[myLabel sizeToFit];
Longer Version
I'll make my label in code so that you can see what's going on. You can set up most of this in Interface Builder too. My setup is a View-Based App with a background image I made in Photoshop to show margins (20 points). ...
CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术
...说明：
大家很容易的可以看出这是情境（一）的加强版，适用于更广泛的环境。其实情境（一）中也已经做到了把火狐与IE游览器区分开来了，现在我们要做的是把火狐从其它游览器中再次识别出来。大家仔细看下代码，大家...
In Python, if I return inside a “with” block, will the file still close?
...he python process terminates in an unusual way of course).
It is also mentioned in one of the examples of PEP-343 which is the specification for the with statement:
with locked(myLock):
# Code here executes with myLock held. The lock is
# guaranteed to be released when the block is left (...
Apache Spark: The number of cores vs. the number of executors
I'm trying to understand the relationship of the number of cores and the number of executors when running a Spark job on YARN.
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how to install gcc on windows 7 machine?
...or C compiler. I found there is no single pre-compiled ready-made installation file for this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understanding.
Could any one please provide me step by step guidance along with links?
...
JavaScript/jQuery to download file via POST with JSON data
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letronje's solution only works for very simple pages. document.body.innerHTML += takes the HTML text of the body, appends the iframe HTML, and sets the innerHTML of the page to that string. This will wipe out any event bindings your page has...
UITableViewCell, show delete button on swipe
...in (-viewDidLoad or in storyboard) do:
self.tableView.allowsMultipleSelectionDuringEditing = NO;
Override to support conditional editing of the table view. This only needs to be implemented if you are going to be returning NO for some items. By default, all items are editable.
- (BOOL)tableView:...
Getting the filenames of all files in a folder [duplicate]
... 17 '11 at 15:31
RoflcoptrExceptionRoflcoptrException
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in_array multiple values
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Intersect the targets with the haystack and make sure the intersection is precisely equal to the targets:
$haystack = array(...);
$target = array('foo', 'bar');
if(count(array_intersect($haystack, $target)) == count($target)){
// all of $target is in $haystack
}
Note that you only n...