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How to serialize an Object into a list of URL query parameters?
...
var str = "";
for (var key in obj) {
if (str != "") {
str += "&";
}
str += key + "=" + encodeURIComponent(obj[key]);
}
Example: http://jsfiddle.net/WFPen/
share
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Using a BOOL property
...ong as you use the dot notation or message notation with the correct name. If you're going to use the dot notation it makes no difference, you still access it by the property name:
@property (nonatomic, assign) BOOL working;
[self setWorking:YES]; // Or self.working = YES;
BOOL working = [...
How to generate a random alpha-numeric string?
...ric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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SQL how to increase or decrease one for a int column in one command
...wer the second:
There are several ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET x=1, y=2
They both can handle your question. However, the first syntax allows for more flexi...
Deprecated warning for Rails 4 has_many with order
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Give this a try:
has_many :contents, -> { order(:position) }
To specify order direction, i.e. either asc or desc as @joshua-coady and @wsprujit have suggested, use:
has_many :contents, -> { order 'position desc' }
or, using the hash style:
has_many :contents, -> { order(position: ...
Conditionally ignoring tests in JUnit 4
...it in a @Before method or in the test itself, but not in an @After method. If you do it in the test itself, your @Before method will get run. You can also do it within @BeforeClass to prevent class initialization.
An assumption failure causes the test to be ignored.
Edit: To compare with the @RunI...
How to convert int to NSString?
.... In the code of your comment, force casting with (id) and assigning to a different type is a clear programming mistake: you should never do that. It's like swizzling a method and then making an argument about that method not doing what it was originally doing.
– Cœur
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PDOException “could not find driver”
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From CLI, you can verify your installation by: php -i | grep pdo_mysql
– krisanalfa
May 23 '18 at 7:56
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Python: Is it bad form to raise exceptions within __init__?
Is it considered bad form to raise exceptions within __init__ ? If so, then what is the accepted method of throwing an error when certain class variables are initialized as None or of an incorrect type?
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How to set UICollectionViewDelegateFlowLayout?
...ller maintains a reference to a UICollectionView. The controller should modify the built-in flow layout using the UICollectionViewDelegateFlowLayout.
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