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How to check a not-defined variable in JavaScript
...= and !== to test for undefined without using typeof as undefined has been read-only for some time.
If you want to know if a member exists independent but don't care what its value is:
if ('membername' in object) // With inheritance
if (object.hasOwnProperty('membername')) // Without inheritance
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How do I check if a string contains another string in Swift?
...ring.lowercaseString.rangeOfString("swift").location != NSNotFound. Please read the documentation.. you will not get a nil object back.
– TheCodingArt
Oct 24 '14 at 2:33
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How to vertically align elements in ?
... All versions of IE do not really supoprt XHTML. I think you might need to read Sending XHTML as text/html Considered Harmful: hixie.ch/advocacy/xhtml
– Richard JP Le Guen
Aug 4 '10 at 15:55
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What exactly do “u” and “r” string flags do, and what are raw string literals?
...first if you wish, but of course this would cause those characters to be unreadable. It is not recommended to use the str type if you want to correctly handle unicode characters.
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How to get evaluated attributes inside a custom directive
...hn"
in: $scope.oneWayBind() // notice the function call, this binding is read only
out: "qwe"
// any changes here will not reflect in parent, as this only a getter .
"Still OK" Answer:
Since this answer got accepted, but has some issues, I'm going to update it to a better one. Apparently, $parse ...
Sass - Converting Hex to RGBa for background opacity
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bizarre. nobody who hadn't read the documentation would ever suspect there's a "transparentize" function. very helpful though, thank you!
– tobybot
Apr 9 '19 at 17:01
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Get hostname of current request in node.js Express
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Here's an alternate
req.hostname
Read about it in the Express Docs.
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What difference between Jersey vs jax-rs
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Well,i readed about that,but dont ask my question. Why we need jersey if we have jax-rs? jax is incomplete?
– user1851366
Jul 26 '13 at 18:56
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How do I make a reference to a figure in markdown using pandoc?
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I've had a chat with Ryan Gray after reading his answer in a similar post. Actually his solution of using :
[image]: image.png "Image Title"
![Alt text][image]
A reference to the [image](#image).
is only adapted when using multimarkdown.
When it comes to p...
T-SQL - function with default parameters
... @Misiu, it is not something that needs to be "fixed". That's by design. I read a lot of alternatives to approach an "ideal" goal of simply being able to call a function without specifying every argument, but I didn't see a clear explanation of why that is required. Code should be clear and one str...