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How do I declare an array of weak references in Swift?
...ring
}
deinit {
print("relasing: \(string)")
}
var description: String {
return self.string
}
}
Then replace NSString with MyString like this. Then strange to say it works.
var alice: MyString? = MyString(string: "Alice")
var bob: MyString? = MyString(string: ...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...DER BY id
Test data:
CREATE TABLE test_table
(
id integer NOT NULL,
description character varying,
"values" character varying,
CONSTRAINT id PRIMARY KEY (id)
)
-- Insert Test Data
INSERT INTO test_table VALUES (1, 'null', NULL);
INSERT INTO test_table VALUES (2, 'empty string', '');
INSE...
Does Python have a package/module management system?
...plejson
You'll see the RubyGems and Npm pages both begin with a one-line description of the package, then large friendly instructions how to install it.
Meanwhile, woe to any hapless Python user who naively browses to PyPI. On https://pypi.python.org/pypi/simplejson/ , they'll find no such helpfu...
How does Spring autowire by name when more than one matching bean is found?
...ean is chosen for each argument. In the simplest case, this can be a plain descriptive value:
class Main {
private Country country;
@Autowired
@Qualifier("country")
public void setCountry(Country country) {
this.country = country;
}
}
This will use the UK add an id to ...
Daylight saving time and time zone best practices [closed]
...ing JavaScript, use moment.js with the moment-timezone extension.
If using PHP > 5.2, use the native time zones conversions provided by DateTime, and DateTimeZone classes. Be careful when using DateTimeZone::listAbbreviations() - see answer. To keep PHP with up to date Olson data, install periodi...
Generate sql insert script from excel worksheet
...ndy tool which saves a lot of time at
http://tools.perceptus.ca/text-wiz.php?ops=7
You just have to feed in the table name, field names and the data - tab separated and hit Go!
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How can I count text lines inside an DOM element? Can I?
... size is dependent on the content (which I assume to be the case from your description) then you can retrieve the div's height using:
var divHeight = document.getElementById('content').offsetHeight;
And divide by the font line height:
document.getElementById('content').style.lineHeight;
Or to ...
Is it possible to add an HTML link in the body of a MAILTO link [duplicate]
... email client not to wrap the url.
e.g.
<http://www.example.com/foo.php?this=a&really=long&url=with&lots=and&lots=and&lots=of&prameters=on_it>
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How do I rename all folders and files to lowercase on Linux?
...
linux.icydog.net/rename.php: The renaming utility that comes by default with Ubuntu is a Perl program sometimes called prename
– sleepsort
May 8 '13 at 15:19
...
Unit Testing bash scripts
...f the test harness for Perl but now has implementations in C, C++, Python, PHP, Perl, Java, JavaScript, and others.
bats-core
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