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Count occurrences of a char in a string using Bash
...
Building on everyone's great answers and comments, this is the shortest and sweetest version:
grep -o "$needle" <<< "$haystack" | wc -l
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Send attachments with PHP Mail()?
...;
// main header (multipart mandatory)
$headers = "From: name <test@test.com>" . $eol;
$headers .= "MIME-Version: 1.0" . $eol;
$headers .= "Content-Type: multipart/mixed; boundary=\"" . $separator . "\"" . $eol;
$headers .= "Content-Transfer-Encoding: 7bit" . $eol;
$he...
How I can I lazily read multiple JSON values from a file/stream in Python?
...lsewhere too. Scrapy calls it 'JSON lines':
https://docs.scrapy.org/en/latest/topics/exporters.html?highlight=exporters#jsonitemexporter
http://www.enricozini.org/2011/tips/python-stream-json/
You can do it slightly more Pythonically:
for jsonline in f:
yield json.loads(jsonline) # or do ...
How to implement an STL-style iterator and avoid common pitfalls?
...r, size_t length) { return ptr_range<T>(ptr, length); }
And simple test
void DoIteratorTest()
{
const static size_t size = 10;
uint8_t *data = new uint8_t[size];
{
// Only for iterator test
uint8_t n = '0';
auto first = begin(data);
auto last = en...
jQuery Ajax POST example with PHP
...ents values */
var values = $(this).serialize();
$.ajax({
url: "test.php",
type: "post",
data: values ,
success: function (response) {
// You will get response from your PHP page (what you echo or print)
},
error: function(jqXHR, textSta...
How to create a remote Git repository from a local one?
... what line endings you have in your Windows repository - I guess you could test it by setting core.autocrlf=false and then cloning (If the repo has LF endings, the clone will have LF too).
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How to check if array element exists or not in javascript?
...hey have the prototype method hasOwnProperty "inherited" from Object
in my testing, hasOwnProperty can check if anything exists at an array index.
So, as long as the above is true, you can simply:
const arrayHasIndex = (array, index) => Array.isArray(array) && array.hasOwnProperty(inde...
C# Events and Thread Safety
... the race condition. It also doesn't guarantee that you always "see" the latest value of the variable.
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Difference between “!==” and “==!” [closed]
...imple comparison ( if ($var ==! " ") ) didn't work as expected. After some testing I realized that whoever wrote that code used ==! instead of !== as comparison operator. I've never seen ==! in any language so I wondered how the hell this code could even work and did some testing:
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Get controller and action name from within controller?
...xample of using System.Web.HttpContext static reference)
string sessionTest = System.Web.HttpContext.Current.Session["test"] as string
}
NOTE: likely not the most supported way to access all properties in HttpContext, but for RequestContext and Session it appears to work fine in my application...