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How does grep run so fast?
... how far ahead it can skip in the input whenever it finds a
non-matching character.
GNU grep also unrolls the inner loop of Boyer-Moore, and sets up the
Boyer-Moore delta table entries in such a way that it doesn't need to
do the loop exit test at every unrolled step. The result of this ...
How can I remove a substring from a given String?
...ng, for the first max values of the search String.
static String replaceChars(String str, char searchChar, char replaceChar) Replaces all occurrences of a character in a String with
another.
static String replaceChars(String str, String searchChars, String replaceChars) Replaces multiple cha...
Get record counts for all tables in MySQL database
...an paste into a new query, without installing Ruby gems and stuff.
SELECT CONCAT(
'SELECT "',
table_name,
'" AS table_name, COUNT(*) AS exact_row_count FROM `',
table_schema,
'`.`',
table_name,
'` UNION '
)
FROM INFORMATION_SCHEMA.TABLES
WHERE table_schema = '**my_...
How do I set the version information for an existing .exe, .dll?
...e 7zS.sfx stub, the first part with the VERSIONINFO inside that you use to concat together a self extracting archive. Manually you can also rename 7zS.sfx in 7zS.exe and edit it in Visual Studio but since the version number is changing for every build you prefer a batch file with rcedit statements i...
hadoop No FileSystem for scheme: file
...on managing the assembly build. e.g. in sbt we could do a mergeStrategy of concat or even filterDistinctLines
– human
Jan 25 '18 at 9:01
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s...
How to write a simple Html.DropDownListFor()?
... new SelectListItem { Value = "0", Text = "Plese Select one Item" } }
.Concat(db.NameOfPaperSections.Select(x => new SelectListItem { Text = x.NameOfPaperSection, Value = x.PaperSectionID.ToString() })),
new { @class = "myselect" })
Derived from the codes: Master Programmer && J...
How do you pass a function as a parameter in C?
...&dosomething;
func();
For a function that returns an int and takes a char you would do
typedef int (*functiontype2)(char);
and to use it
int dosomethingwithchar(char a) { return 1; }
functiontype2 func2 = &dosomethingwithchar
int result = func2('a');
There are libraries that can hel...
Is there a generator version of `string.split()` in Python?
...'][')
EDIT: Corrected handling of surrounding whitespace if no separator chars are given.
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MySQL, Check if a column exists in a table with SQL
...
@Mfoo Thanks Mfoo, you saved my day! Works like charm. One of the best solutions apart from creating Procedures for this task.
– webblover
Feb 14 '14 at 17:49
...
How to join two JavaScript Objects, without using JQUERY [duplicate]
...s(obj2).forEach(k => merged[k] = obj2[k]);
OR
Object.keys(obj1)
.concat(Object.keys(obj2))
.forEach(k => merged[k] = k in obj2 ? obj2[k] : obj1[k]);
3) Simplest way:
var merged = {};
Object.assign(merged, obj1, obj2);
...