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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...of tests
Array(que).join(0).split(0).forEach(function(a,i){
var xhr = new XMLHttpRequest;
xhr.open("GET", "/?"+i); // cacheBust
xhr.onreadystatechange = function() {
if(xhr.readyState == 2){
change++;
simultanius = Math.max(simultanius, change);
}...
What is the best way to give a C# auto-property an initial value?
...st sugar the compiler does. what actually is emitted is this: var person = new Person(); persion.Name = "My Value"; Constructor always runs first
– Darren Kopp
Jun 19 '13 at 23:07
...
Using ping in c#
... pingable = false;
Ping pinger = null;
try
{
pinger = new Ping();
PingReply reply = pinger.Send(nameOrAddress);
pingable = reply.Status == IPStatus.Success;
}
catch (PingException)
{
// Discard PingExceptions and return false;
}
finall...
How to get distinct values from an array of objects in JavaScript?
...roup: 'A', name: 'MM' },
{ group: 'B', name: 'CO'}
];
const unique = [...new Set(data.map(item => item.group))]; // [ 'A', 'B']
Here is an example on how to do it.
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improve this answer
...
Specifying an Index (Non-Unique Key) Using JPA
... bugs, and rebranded it as ReActiveAndroid - use this if you're starting a new project or refer to Migration Guide if you want to replace ActiveAndroid in a legacy project.
ReActiveAndroid: Annotation com.reactiveandroid.annotation.Column has index, indexGroups, unique, and uniqueGroups properties; ...
Getting all selected checkboxes in an array
...t but it should work
<script type="text/javascript">
var selected = new Array();
$(document).ready(function() {
$("input:checkbox[name=type]:checked").each(function() {
selected.push($(this).val());
});
});
</script>
...
How SID is different from Service name in Oracle tnsnames.ora
...d you can also give it any other
name you want.
SERVICE_NAME is the new feature from
oracle 8i onwards in which database
can register itself with listener. If
database is registered with listener
in this way then you can use
SERVICE_NAME parameter in tnsnames.ora
otherwise - use S...
Is there an “exists” function for jQuery?
...there are plenty of jQuery $.fn methods that return something other than a new jQuery object and therefore don't chain.
– Alnitak
Jul 18 '14 at 8:12
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...
Which Java Collection should I use?
...hen the (capacity + 1)-th element is added), the array is recreated with a new capacity of (new length * 1.5)--this recreation is fast, since it uses System.arrayCopy(). Deleting and inserting/adding elements requires all neighboring elements (to the right) be shifted into or out of that space. Acce...
How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
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