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How to validate IP address in Python? [duplicate]
...way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
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IDEA: javac: source release 1.7 requires target release 1.7
...017
Similar to that discussed below for IntelliJ 13 & 14, but with an extra level in the Settings/Preferences panel: Settings > Build, Execution, Deployment > Compiler > Java Compiler.
IntelliJ 13 & 14
In IntelliJ 13 and 14, check the Settings > Compiler > Java Compiler U...
What is a “context bound” in Scala?
...code expressed with a View Bound:
scala> implicit def int2str(i: Int): String = i.toString
int2str: (i: Int)String
scala> def f1[T <% String](t: T) = 0
f1: [T](t: T)(implicit evidence$1: (T) => String)Int
This could also be expressed with a Context Bound, with the help of a type alia...
Generate a random alphanumeric string in Cocoa
...ll a method, pass it the length and have it generate a random alphanumeric string.
20 Answers
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Golang tests in sub-directory
...rn if it includes one or more "..." wildcards, each of which can match any string, including the empty string and strings containing slashes.
Such a pattern expands to all package directories found in the GOPATH trees with names matching the patterns.
As a special case, x/... matches x as well as x'...
App Inventor 2 上传文件和图片到服务器教程 · App Inventor 2 中文网
...10, 26, 10]))) return 'png';
if (/^GIF8[79]a/.test(data.subarray(0, 6).toString('ascii'))) return 'gif';
if (data.subarray(0, 4).toString() === 'RIFF' && data.subarray(8, 12).toString() === 'WEBP') return 'webp';
if (data.subarray(0, 5).toString() === '%PDF-') return 'pdf';
return 'bin';
}
f...
Passing a string with spaces as a function argument in bash
I'm writing a bash script where I need to pass a string containing spaces to a function in my bash script.
8 Answers
...
On delete cascade with doctrine2
...GeneratedValue
*/
protected $id;
/**
* @Column(type="string", length="75", unique="true")
*/
protected $name;
/**
* @OneToMany(targetEntity="Phonenumber", mappedBy="contact")
*/
protected $phonenumbers;
public function __construct($name=nu...
MySQL check if a table exists without throwing an exception
...on table_exist($table){
global $con;
$table = $con->real_escape_string($table);
$sql = "show tables like '".$table."'";
$res = $con->query($sql);
return ($res->num_rows > 0);
}
Hope it helps.
Warning: as sugested by @jcaron this function could be vulnerable to sqli...
How do I convert an NSString value to NSData?
How do I convert an NSString value to NSData ?
11 Answers
11
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