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JavaScript by reference vs. by value [duplicate]
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My understanding is that this is actually very simple:
Javascript is always pass by value, but when a variable refers to an object (including arrays), the "value" is a reference to the object.
Changing the value of a variable never changes the underlying prim...
Count cells that contain any text
...<>" (including the quotes) as the parameter for criteria. This basically says, as long as its not empty/blank, count it. I believe this is what you want.
=COUNTIF(A1:A10, "<>")
Otherwise you can use CountA as Scott suggests
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.NET Global exception handler in console application
...ots of technologies to run in different threads. For example, the Task Parallel Library (TPL) has its own way to catch unhandled exceptions. So, saying this doesn't work for all situations is kind of ludicrous, there is NO one place catch-all for everything in C#, but depending on the technologies...
How do you get a timestamp in JavaScript?
...nd it returns the timestamp (without any alteration).
Details:
On almost all current browsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table).
You can easily make a shim for this, though:
if (!Date.now) {
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How can I get the SQL of a PreparedStatement?
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Although this is functionally true, there's nothing preventing utility code from reconstructing an equivalent unprepared statement. For example, in log4jdbc: "In the logged output, for prepared statements, the bind arguments are automatically insert...
click or change event on radio using jquery
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});
</script>
You must make sure that you initialized jquery above all other imports and javascript functions. Because $ is a jquery function. Even
$(function(){
<code>
});
will not check jquery initialised or not. It will ensure that <code> will run only after all the javascr...
How to configure Git post commit hook
...it/notifyCommit?url=<URL of the Git repository>
This will scan all the jobs that’s configured to check out the specified URL, and if they are also configured with polling, it’ll immediately trigger the polling (and if that finds a change worth a build, a build will be triggered in tu...
How can I determine the direction of a jQuery scroll event?
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An update on this: Be careful that some browsers, specially IE 11 on Windows 8, can fire a scroll event subpixel-based (smooth scrolling). But because it reports scrollTop as an integer, your previous scroll value could be the same as the current one.
– Rena...
How to close tag properly?
...es the tag properly. Best to add the alt attribute for people that are visually impaired.
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How to git reset --hard a subdirectory?
Imagine the following use case: I want to get rid of all changes in a specific subdirectory of my Git working tree, leaving all other subdirectories intact.
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