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JavaScript Regular Expression Email Validation [duplicate]
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If you define your regular expression as a string then all backslashes need to be escaped, so instead of '\w' you should have '\\w'.
Alternatively, define it as a regular expression:
var pattern = /^\w+@[a-zA-Z_]+?\.[a-zA-Z...
Is it possible to change the location of packages for NuGet?
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It's now possible to control which folder the packages are installed into.
http://nuget.codeplex.com/workitem/215
Edit:
See Phil Haack's comment on Dec 10 2010 at 11:45 PM (in the work item/the link above). The support is parti...
When a 'blur' event occurs, how can I find out which element focus went *to*?
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Now it has. See here.
– rplaurindo
Dec 2 '16 at 5:05
1
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Open link in new tab or window [duplicate]
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When not using a special name, as specified in links above, target is the name of the window (or "frame") you're targeting. If you set it to _tab or _new then it opens a window with that name. If a user clicks that link, goes back to your initial page and click...
Rails: How does the respond_to block work?
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No kidding. If you already know how to code, rails might not be for you :-P
– Limited Atonement
Sep 15 at 15:46
add a comment
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Concatenating two lists - difference between '+=' and extend()
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The only difference on a bytecode level is that the .extend way involves a function call, which is slightly more expensive in Python than the INPLACE_ADD.
It's really nothing you should be worrying about, unless you're performing this...
What is the Swift equivalent of respondsToSelector?
...is inherently a safe language so everytime you call a method Swift has to know the method is there. No runtime checking is possible. You can't just call random methods on random objects.
Even in Obj-C you should avoid such things when possible because it doesn't play well with ARC (ARC then trigger...
How do I create an average from a Ruby array?
...viously, an average only makes sense for things that can be averaged). But if you want to go that route, use this:
class Array
def sum
inject(0.0) { |result, el| result + el }
end
def mean
sum / size
end
end
If you haven't seen inject before, it's not as magical as it might appe...
“The breakpoint will not currently be hit. The source code is different from the original version.”
... cardinal sin, as that config may well be used by the CI build machine (I know it is here), so ultimately could pass that when it should fail. I know it could be one of many build steps but still... @Oliver I hope the team member bought you some biscuits ! :)
– Fetchez la vache...
乐高 EV3 实验03 - 接触传感器，撞到就停 · App Inventor 2 中文网
...先确认传感器能读到
when 按钮_测试.Click() {
if EV3接触传感器1.IsPressed() {
标签_碰撞.Text = "当前：按下"
} else {
标签_碰撞.Text = "当前：松开"
}
}
中途验证：用手按住传感器再点「测试」，显示「按下」。这一...