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What is the difference between 127.0.0.1 and localhost
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some applications will treat "localhost" specially. the mysql client will treat localhost as a request to connect to the local unix domain socket instead of using tcp to connect to the server on 127.0.0.1. This may be faster, an...
Will strlen be calculated multiple times if used in a loop condition?
...mstances include compiling with GCC under linux, where strlen is marked as __attribute__((pure)) allowing the compiler to elide multiple calls. GCC Attributes
– David Rodríguez - dribeas
Jul 6 '12 at 15:42
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Can I use require(“path”).join to safely concatenate urls?
...ou're doing you may need to nest calls, eg.. url.resolve(url.resolve(SERVER_URL, pagePath), queryString)
– Molomby
Aug 23 '19 at 0:31
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show...
set date in input type date
...swered Nov 10 '12 at 14:30
int32_tint32_t
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Postgresql SELECT if string contains
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You should use 'tag_name' outside of quotes; then its interpreted as a field of the record. Concatenate using '||' with the literal percent signs:
SELECT id FROM TAG_TABLE WHERE 'aaaaaaaa' LIKE '%' || tag_name || '%';
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Get Android Phone Model programmatically
...:
Build.BOARD = MSM8974
Build.BOOTLOADER = s1
Build.BRAND = Sony
Build.CPU_ABI = armeabi-v7a
Build.CPU_ABI2 = armeabi
Build.DEVICE = D5503
Build.DISPLAY = 14.6.A.1.236
Build.FINGERPRINT = Sony/D5503/D5503:5.1.1/14.6.A.1.236/2031203XXX:user/release-keys
Build.HARDWARE = qcom
Build.HOST = BuildHost
B...
Using pg_dump to only get insert statements from one table within database
... as INSERT statements from one specific table within a database using pg_dump in PostgreSQL.
4 Answers
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...ctionary<TKey, TValue>
{
private IDictionary<TKey, TValue> _dict = new Dictionary<TKey, TValue>();
public TValue this[TKey key]
{
get
{
TValue val;
if (!TryGetValue(key, out val))
return default(TValue);
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what is the unsigned datatype?
...or unsigned long long int
— float
— double
— long double
— _Bool
— float _Complex
— double _Complex
— long double _Complex
— atomic type specifier
— struct or union specifier
— enum specifier
— typedef name
So in case of unsigned int we can either writ...
How to check if an element is in an array
...ed and work with the first such element,
Then an alternative to contains(_:) as blueprinted Sequence is to first(where:) of Sequence:
let elements = [1, 2, 3, 4, 5]
if let firstSuchElement = elements.first(where: { $0 == 4 }) {
print(firstSuchElement) // 4
// ...
}
In this contrived ex...