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Hidden Features of JavaScript? [closed]
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Also, be careful: the in operator also tests the prototype chain! If someone has put a property called '5' on the Object.prototype, the second example would return true even if you called '5 in list(1, 2, 3, 4)'... You'd better use the hasOwnProperty method: list...
What does the comma operator , do?
....len() > 5)
{
//do something
}
It will do the operation, then do a test based on a side-effect. The other way would be to do it like this:
string s;
read_string(s);
while(s.len() > 5)
{
//do something
read_string(s);
}
...
How to detect online/offline event cross-browser?
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@chovy and how about now? I lately tested it in Firefox/Chrome and got the expected results, seeing that the flag is being set, when I turn off and on the internet connection..
– James Cazzetta
Nov 27 '15 at 12:45
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Is there a way to get version from package.json in nodejs code?
...he client, as it means that all your dependency version numbers, build and test commands and more are sent to the client.
If you're building server and client in the same project, you expose your server-side version numbers too.
Such specific data can be used by an attacker to better fit the att...
How to access app.config in a blueprint?
... must have some request context. If you don't have one (some pre-work like testing, e.g.) you'd better place
with app.test_request_context('/'):
before this current_app call.
You will have RuntimeError: working outside of application context , instead.
...
Returning an array using C
...ved_from(srcArray[i]);
...
}
int main(void)
{
char src[] = "This is a test";
char dst[sizeof src];
...
returnArray(src, sizeof src, dst, sizeof dst);
...
}
Another method is for the function to allocate the array dynamically and return the pointer and size:
char *returnArray(const ch...
Could not load file or assembly 'System.Data.SQLite'
...nate initialisation. Works a charm on any architecture (well the 2 I have tested)
Hope this helps someone.
Guido
private static void LoadSQLLiteAssembly()
{
Uri dir = new Uri(Assembly.GetExecutingAssembly().CodeBase);
FileInfo fi = new FileInfo(dir.Absolut...
HtmlSpecialChars equivalent in Javascript?
...pecial character. For example:
escapeHtml('Kip\'s <b>evil</b> "test" code\'s here');
Actual: Kip&#039;s &lt;b&gt;evil</b> &quot;test" code's here
Expected: Kip&#039;s &lt;b&gt;evil&lt;/b&gt; &quot;test&quot; code&#039;s here
Here i...
Is there any way to prevent input type=“number” getting negative values?
... working fine for me. Can you please check:
<input type="number" name="test" min="0" oninput="validity.valid||(value='');">
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
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I found the iterator idiom elegant, because it has a test for more elements (ommited null/empty test for brevity):
public static String convert(List<String> list) {
String res = "";
for (Iterator<String> iterator = list.iterator(); iterator.hasNext();) {
...