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What makes JNI calls slow?
...code requires something similar to reflection. Signatures are specified in strings and queried from the JVM. This is both slow and error-prone.
Java Strings are objects, have length and are encoded. Accessing or creating a string may require an O(n) copy.
Some additional discussion, possibly dated...
How to show full object in Chrome console?
...r() to output a browse-able object you can click through instead of the .toString() version, like this:
console.dir(functor);
Prints a JavaScript representation of the specified object. If the object being logged is an HTML element, then the properties of its DOM representation are printed [1]...
How to convert lazy sequence to non-lazy in Clojure
...y-seq)) is not so nice in situations like the following: (vec (json/parse-string "{\"foo\":\"bar\"}")) ;; => [["foo" "bar"]] Since cheshire chooses to produce a lazy-seq from (json/parse-string)
– codeasone
Feb 7 '18 at 16:06
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How to get a subset of a javascript object's properties
... limitation is that a list of keys is predefined, they cannot be listed as strings, as the question mentions. Destructuring becomes more complicated if a key is non-alphanumeric, e.g. foo_bar.
The downside is that this requires to duplicate a list of keys, this results in verbose code in case a lis...
Regular expression for a hexadecimal number?
...an also recognize hex patterns like: '535GH0G73' For Java, we can use e.g String.matches() for checking this.. Thank you guys for the response :)
– saurcery
Feb 10 '12 at 2:23
2
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.NET WebAPI Serialization k_BackingField Nastiness
...ializable]
[DataContract]
public class Error
{
[DataMember]
public string Status { get; set; }
[DataMember]
public string Message { get; set; }
[DataMember]
public string ErrorReferenceCode { get; set; }
[DataMember]
public List<FriendlyError> Errors { get; set;...
Checking if form has been submitted - PHP
...e steps:
Generate a unique token (you can use hash) Ex:
$token = hash (string $algo , string $data [, bool $raw_output = FALSE ] );
Assign this token to a session variable. Ex:
$_SESSION['form_token'] = $token;
Add a hidden input to submit the token. Ex:
input type="hidden" name="token" va...
jQuery select by attribute using AND and OR operators
...
The and operator in a selector is just an empty string, and the or operator is the comma.
There is however no grouping or priority, so you have to repeat one of the conditions:
a=$('[myc=blue][myid="1"],[myc=blue][myid="3"]');
...
How can I find where I will be redirected using cURL?
...ke curl follow a redirect but I can't quite get it to work right. I have a string that I want to send as a GET param to a server and get the resulting URL.
...
How to get everything after last slash in a URL?
...
You don't need fancy things, just see the string methods in the standard library and you can easily split your url between 'filename' part and the rest:
url.rsplit('/', 1)
So you can get the part you're interested in simply with:
url.rsplit('/', 1)[-1]
...