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Effective way to find any file's Encoding
...;The detected encoding.</returns>
public static Encoding GetEncoding(string filename)
{
// Read the BOM
var bom = new byte[4];
using (var file = new FileStream(filename, FileMode.Open, FileAccess.Read))
{
file.Read(bom, 0, 4);
}
// Analyze the BOM
if (bom[0...
How can you find and replace text in a file using the Windows command-line environment?
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Replace - Replace a substring using string substitution
Description: To replace a substring with another string use the string substitution feature. The example shown here replaces all occurrences "teh" misspellings with "the" in the string variabl...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
....
Whatever you do, I highly advise against the third option: Returning a string that says "WTF".
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How to split a sequence into two pieces by predicate?
...like this (modify if you need to search for ints)
def split(list_in: List[String], search: String): List[List[String]] = {
def split_helper(accum: List[List[String]], list_in2: List[String], search: String): List[List[String]] = {
val (h1, h2) = list_in2.span({x: String => x!= search})
...
Count, size, length…too many choices in Ruby?
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In most cases (e.g. Array or String) size is an alias for length.
count normally comes from Enumerable and can take an optional predicate block. Thus enumerable.count {cond} is [roughly] (enumerable.select {cond}).length -- it can of course bypass the i...
subtle differences between JavaScript and Lua [closed]
...als in JS can be in octal.
JS has explicit Unicode support, and internally strings are encoded in UTF-16 (so they are sequences of pairs of bytes). Various built-in JavaScript functions use Unicode data, such as "pâté".toUpperCase() ("PÂTÉ"). Lua 5.3 and up have Unicode code point escape sequenc...
How should I store GUID in MySQL tables?
...handy functions (thanks to a wiser collegue of mine) to get from 36 length string back to a byte array of 16.
DELIMITER $$
CREATE FUNCTION `GuidToBinary`(
$Data VARCHAR(36)
) RETURNS binary(16)
DETERMINISTIC
NO SQL
BEGIN
DECLARE $Result BINARY(16) DEFAULT NULL;
IF $Data IS NOT NULL THE...
Making the Android emulator run faster
...ndows:
Install "Intel x86 Emulator Accelerator (HAXM)" => SDK-Manager/Extras
Install "Intel x86 Atom System Images" => SDK-Manager/Android 2.3.3
Go to the Android SDK root folder and navigate to extras\intel\Hardware_Accelerated_Execution_Manager. Execute file IntelHaxm.exe to install. (in A...
Difference between 2 dates in SQLite
...day(DateCreated). The former does not account for DST days and will add an extra hour to created dates in Mar-Nov. The latter actually does account for it. stackoverflow.com/questions/41007455/…
– vapcguy
Dec 8 '16 at 19:36
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Determine if running on a rooted device
...tMethod3();
}
private static boolean checkRootMethod1() {
String buildTags = android.os.Build.TAGS;
return buildTags != null && buildTags.contains("test-keys");
}
private static boolean checkRootMethod2() {
String[] paths = { "/system/app/Superuser.a...