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How can I strip all punctuation from a string in JavaScript using regex?
...lace(/\s{2,}/g, " ") to replace extra spaces if you need to do so. You can test the regex in http://rubular.com/
.replace(/[^A-Za-z0-9\s]/g,"").replace(/\s{2,}/g, " ")
Update: Will only work if the input is ANSI English.
...
Can I use a binary literal in C or C++?
...GCC, and TCC. It doesn't work in PCC. I doesn't have any other compiler to test with.
– Michas
Jun 20 '11 at 16:05
6
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How to check that an element is in a std::set?
...s with std::set, other STL containers, and even fixed-length arrays:
void test()
{
std::set<int> set;
set.insert(1);
set.insert(4);
assert(!contains(set, 3));
int set2[] = { 1, 2, 3 };
assert(contains(set2, 3));
}
Edit:
As pointed out in the comments, I unintention...
Escape angle brackets in a Windows command prompt
...etlocal disableDelayedExpansion
set "line=<html>"
cmd /v:on /c echo !test!|findstr .
Note that delayed expansion is OFF in the parent batch script.
But all hell breaks loose if delayed expansion is enabled in the parent script. The following does not work:
@echo off
setlocal enableDelayedE...
What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...teness, here are the implementations for .Union() and .Except().
Spoiler alert: they, too, have O(N+M) complexity.
private static IEnumerable<TSource> UnionIterator<TSource>(IEnumerable<TSource> first, IEnumerable<TSource> second, IEqualityComparer<TSource> comparer...
When saving, how can you check if a field has changed?
...Josh's answer, this code will deceptively work fine on your single-process testing server, but the moment you deploy it to any sort of multi-processing server, it will give incorrect results. You can't know if you're changing the value in the database without querying the database.
...
Get $_POST from multiple checkboxes
...['check_list'][]).
Here's a little sample as requested:
<form action="test.php" method="post">
<input type="checkbox" name="check_list[]" value="value 1">
<input type="checkbox" name="check_list[]" value="value 2">
<input type="checkbox" name="check_list[]" value="...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...16) | (x << 16));
}
From the famous Bit Twiddling Hacks page:
Fastest (lookup table):
static const unsigned char BitReverseTable256[] =
{
0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0...
Convert all first letter to upper case, rest lower for each word
...
Untested but something like this should work:
var phrase = "THIS IS MY TEXT RIGHT NOW";
var rx = new System.Text.RegularExpressions.Regex(@"(?<=\w)\w");
var newString = rx.Replace(phrase,new MatchEvaluator(m=>m.Value.ToL...
In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...
The key to Daniel's example is testing the .id field. Newly created objects will have id==None. By the way, one of the oldest open Django tickets is about this issue. See code.djangoproject.com/ticket/342 .
– Peter Rowell
...