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Are C# events synchronous?
...y.
The event handlers are executed sequentially, one after another, in the order they are subscribed to the event.
I too was curious about the internal mechanism of event and its related operations. So I wrote a simple program and used ildasm to poke around its implementation.
The short answer i...
How can I convert a comma-separated string to an array?
...leTags = ['vinita@itsabacus.com']; console.log(sampleTags); $("#order_id").on("change", function() { var order_id = document.getElementById('order_id').value; $.ajax({url: "model/getUserMailIds.php",data:{order_id:order_id},type:'POST', success: function(result){ alert(result...
How do cache lines work?
...,5% of its time (if it only reads memory) idle waiting for the memory.
In order to speed things up there is the L1, L2, L3 caches. They use memory being directly placed on the chip and using a different kind of transistor circuits to store the given bits. This takes more room, more energy and is mo...
TypeError: unhashable type: 'dict'
...
just a note @StevenDu dictionaries do not guarantee order, so str(my_dict) could return two different strings for the same (or different, but equivalent) dicts
– K Raphael
Mar 14 '17 at 16:38
...
Explain Morris inorder tree traversal without using stacks or recursion
Can someone please help me understand the following Morris inorder tree traversal algorithm without using stacks or recursion ? I was trying to understand how it works, but its just escaping me.
...
Why is quicksort better than mergesort?
...t into a BTREE datastructure for the index. (BTREEs are naturally kept in order, so you can load one from a sorted dataset with few seeks to disk.)
There have been a number of occasions where understanding how to avoid disk seeks has let me make data processing jobs take hours rather than days or ...
When to use IMG vs. CSS background-image?
...ze.
Use IMG
for multiple overlay images in IE6.
Use IMG with a z-index in order
to stretch a background image to fill its entire window.Note, this is no longer true with CSS3 background-size; see #6 below.
Using img instead of background-image can dramatically improve performance of animations ove...
Javascript array search and remove string?
...
Loop through the list in reverse order, and use the .splice method.
var array = ['A', 'B', 'C']; // Test
var search_term = 'B';
for (var i=array.length-1; i>=0; i--) {
if (array[i] === search_term) {
array.splice(i, 1);
// break; ...
XPath contains(text(),'some string') doesn't work when used with node with more than one Text subnod
...ng the string-value of the node in the node-set that is first in document order. Hence, it can match only the first text node in your <Comment> element -- namely BLAH BLAH BLAH. Since that doesn't match, you don't get a <Comment> in your results.
You need to change this to
//*[text(...
Easy way to write contents of a Java InputStream to an OutputStream
...this input stream and writes the bytes to the
given output stream in the order that they are read. On return, this
input stream will be at end of stream. This method does not close
either stream.
This method may block indefinitely reading from the
input stream, or writing to the output...