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Regular expression for floating point numbers
...g a floating point number is
[+-]?([0-9]*[.])?[0-9]+
This will match:
123
123.456
.456
See a working example
If you also want to match 123. (a period with no decimal part), then you'll need a slightly longer expression:
[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)
See pkeller's answer for a fuller...
How to get the data-id attribute?
...
To get the contents of the attribute data-id (like in <a data-id="123">link</a>) you have to use
$(this).attr("data-id") // will return the string "123"
or .data() (if you use newer jQuery >= 1.4.3)
$(this).data("id") // will return the number 123
and the part after data- ...
Git - working on wrong branch - how to copy changes to existing topic branch
...
Sounds like all you need is the following:
git stash
git checkout branch123
git stash apply
Then you should be back on your own branch without touching the master branch.
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Difference between toFixed() and toPrecision()?
...rovides x total length." does not necessarily hold. Counter example: 0.00001234.toPrecision(3)
– djvg
Nov 28 '18 at 8:36
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使用 XML 和 Web 服务 · App Inventor 2 中文网
...evel tag-delimited structure in the input string. For example, decoding
123
returns the list of one pair (hello, 123) and decoding
123
456
returns the list of two pairs (hello, 123) and (goodbye, 456).
For each pair, the first element is the tag, and the second element is the decoding of t...
What is the advantage of using Restangular over ngResource?
...g about them.
Suppose that you have something like this for cars : /users/123/cars/456
In $resource, You'd have to construct that URL manually and you'd also have to construct the $resource object for this manually. Restangular helps you in this by "remembering" the URLs.
So if you do in some pla...
Using String Format to show decimal up to 2 places or simple integer
...
An inelegant way would be:
var my = DoFormat(123.0);
With DoFormat being something like:
public static string DoFormat( double myNumber )
{
var s = string.Format("{0:0.00}", myNumber);
if ( s.EndsWith("00") )
{
return ((int)myNumber).ToString();
...
Why would I ever use push_back instead of emplace_back?
... will be invalid after the call.
std::vector<int> v;
v.emplace_back(123);
v.emplace_back(v[0]); // Produces incorrect results in some compilers
On one compiler, v contains the values 123 and 21 instead of the expected 123 and 123. This is due to the fact that the 2nd call to emplace_back re...
How to remove text from a string?
I've got a data-123 string.
11 Answers
11
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Validate phone number with JavaScript
...fectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
26 Answers
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