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Interface/enum listing standard mime-type constants
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It's a pity there are no String constants defined in com.google.common.net.MediaType, as MediaType.toString()isn't a compile time constant and therefore not usable in annotations
– Markus Pscheidt
Mar 18 '15 at ...
Check whether a string matches a regex in JS
... (can be with jQuery) to do some client-side validation to check whether a string matches the regex:
11 Answers
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How can I prevent SQL injection in PHP?
...stmt->bind_param('s', $name); // 's' specifies the variable type => 'string'
$stmt->execute();
$result = $stmt->get_result();
while ($row = $result->fetch_assoc()) {
// Do something with $row
}
If you're connecting to a database other than MySQL, there is a driver-specific se...
Pretty-print a Map in Java
...intingMap(Map<K, V> map) {
this.map = map;
}
public String toString() {
StringBuilder sb = new StringBuilder();
Iterator<Entry<K, V>> iter = map.entrySet().iterator();
while (iter.hasNext()) {
Entry<K, V> entry = iter.next(...
:: (double colon) operator in Java 8
...r<Integer> b1 = System::exit; // void exit(int status)
Consumer<String[]> b2 = Arrays::sort; // void sort(Object[] a)
Consumer<String> b3 = MyProgram::main; // void main(String... args)
class Hey {
public double getRandom() {
return Math.random();
}
}
Callable&...
String formatting named parameters?
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In Python 2.6+ and Python 3, you might choose to use the newer string formatting method.
print('<a href="{0}">{0}</a>'.format(my_url))
which saves you from repeating the argument, or
print('<a href="{url}">{url}</a>'.format(url=my_url))
if you want named par...
String.IsNullOrWhiteSpace in LINQ Expression
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You need to replace
!string.IsNullOrWhiteSpace(b.Diameter)
with
!(b.Diameter == null || b.Diameter.Trim() == string.Empty)
For Linq to Entities this gets translated into:
DECLARE @p0 VarChar(1000) = ''
...
WHERE NOT (([t0].[Diameter] IS NUL...
Opening a folder in explorer and selecting a file
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Use this method:
Process.Start(String, String)
First argument is an application (explorer.exe), second method argument are arguments of the application you run.
For example:
in CMD:
explorer.exe -p
in C#:
Process.Start("explorer.exe", "-p")
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Convert Base64 string to an image file? [duplicate]
I am trying to convert my base64 image string to an image file. This is my Base64 string:
8 Answers
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Best way to format integer as string with leading zeros? [duplicate]
I need to add leading zeros to integer to make a string with defined quantity of digits ($cnt).
What the best way to translate this simple function from PHP to Python:
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