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Remove by _id in MongoDB console
... new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
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Collisions when generating UUIDs in JavaScript?
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Thanks, I'm going with uuid.js now, since it uses browser's strong crypto if available. Will see if there are any collisions.
– Muxa
Aug 31 '11 at 22:21
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How can I force a hard reload in Chrome for Android
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Now its changed to Clear Browsing Data, where you can check clear cache using check box.
– shaijut
Dec 3 '15 at 7:39
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How can I check if a var is a string in JavaScript?
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@alex I am now too :o (10 more minutes!)
– David Tang
Jun 8 '11 at 23:49
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Null vs. False vs. 0 in PHP
...s.
0 is an int. Nothing to do with the rest above, used for mathematics.
Now, what is tricky, it's that in dynamic languages like PHP, all of them have a value in a boolean context, which (in PHP) is False.
If you test it with ==, it's testing the boolean value, so you will get equality. If you t...
Is it possible to have a multi-line comments in R? [duplicate]
... <- function(x) {
# Non! Comment it out! We'll just do it once for now.
"if (x %in% 1:9) {
doTenEverythings()
}"
doEverythingOnce()
...
return(list(
everythingDone = TRUE,
howOftenDone = 1
))
}
The main limitation is that when you'...
How can I return the current action in an ASP.NET MVC view?
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I know this pre-dates V2, but it's now ViewContext.Controller.ValueProvider.GetValue("action").RawValue + variations
– Chris S
Oct 24 '10 at 15:03
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How to get an element's top position relative to the browser's viewport?
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The existing answers are now outdated. The native getBoundingClientRect() method has been around for quite a while now, and does exactly what the question asks for. Plus it is supported across all browsers (including IE 5, it seems!)
From MDN page:
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Why does NULL = NULL evaluate to false in SQL server
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Think of the null as "unknown" in that case (or "does not exist"). In either of those cases, you can't say that they are equal, because you don't know the value of either of them. So, null=null evaluates to not true (false or null, depending on you...
Client-server synchronization pattern / algorithm?
...ationships. We are primarily focused on this option.
So, we grabbed our knowledge into this article which I think might be very useful to everyone interested in the topic => Data Syncing in Core Data Based iOS apps (http://blog.denivip.ru/index.php/2014/04/data-syncing-in-core-data-based-ios-ap...