I’ve just tested a few browsers using this silly bit of JavaScript: Run code snippetExpand snippet IE8 and Opera 9 on Windows use \r\n. All the other browsers I tested (Safari 4 and Firefox 3.5 on Windows, and Firefox 3.0 on Linux) use \n. They can all handle \n just fine when setting the value, though IE and Opera … Read more
. I need a floating rectangle (100% width, 100px height) to appear exactly 20px above the bottom of a page. How can I do that? The code below shows the rectangle at the bottom of the browser window not the page – so if the page is taller than what can fit in the screen, … Read more
text() is used to match something. For example if we have this structure: Doing //b/text() will return the text node ‘hello ‘ just like //b/element() will return the element c. data($arg) is a function that returns the atomic value of a node, for example data(//b) will return ‘hello world’. If you use the data($arg) function … Read more
One simplistic approach to measuring the “elapsed time” between events is to just grab the current date and time. In SQL Server Management Studio To calculate elapsed times, you could grab those date values into variables, and use the DATEDIFF function: That’s just one approach. You can also get elapsed times for queries using SQL … Read more
In the first regex, each space character is being replaced, character by character, with the empty string. In the second regex, each contiguous string of space characters is being replaced with the empty string because of the +. However, just like how 0 multiplied by anything else is 0, it seems as if both methods strip spaces in exactly the … Read more
I have a web page from which I need to send an email to. I need to send a LARGE email from the browser. Because the content is larger than the query string allows, I need to rely on Active X. I want to send this email through Outlook. In an attempt to do this, … Read more
I have seen the terms “deserialize” and “serialize” with JSON. What do they mean?
Introduction What a “contrasts error” is has been well explained: you have a factor that only has one level (or less). But in reality this simple fact can be easily obscured because the data that are actually used for model fitting can be very different from what you’ve passed in. This happens when you have NA in … Read more
To start, note that is a special pointer ( == memory address) to the class its in. First, an object is instantiated: Next, a pointer is instantiated: Next, the memory address of a is assigned to the pointer b: Next, the method CDummy::isitme(CDummy ¶m) is called: A test is evaluated inside this method: Here’s the tricky part. param is an … Read more
You can try using System.arraycopy() But, probably better to use clone() in most cases: