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Why not use Double or Float to represent currency?
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16 Answers
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How to convert a string to integer in C?
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12 Answers
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“Comparison method violates its general contract!”
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11 Answers
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How can I check if a URL exists via PHP?
...ders = @get_headers($file);
if(!$file_headers || $file_headers[0] == 'HTTP/1.1 404 Not Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above post, there's a curl solution:
function url_exists($url) {
return curl_init($url) !== false;
}
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How to return a part of an array in Ruby?
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195
Yes, Ruby has very similar array-slicing syntax to Python. Here is the ri documentation for th...
The order of keys in dictionaries
...edDict (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b', 2), ('c', 3)]).
As mentioned in the documentation, for ...
How to check if PHP array is associative or sequential?
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Submitting a multidimensional array via POST with php
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149
On submitting, you would get an array as if created like this:
$_POST['topdiameter'] = array(...
Why in Java 8 split sometimes removes empty strings at start of result array?
...d Java 8. The code is retrieved from grepcode, for version 7u40-b43 and 8-b132.
Java 7
public String[] split(CharSequence input, int limit) {
int index = 0;
boolean matchLimited = limit > 0;
ArrayList<String> matchList = new ArrayList<>();
Matcher m = matcher(input);...