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How to loop through a HashMap in JSP?
... answered Oct 3 '19 at 5:53
tk_tk_
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cannot convert data (type interface {}) to type string: need type assertion
...]i to its value type, we have to do it individually:
// var items []i
for _, item := range items {
value, ok := item.(T)
dosomethingWith(value)
}
Performance
As for performance, it can be slower than direct access to the actual value as show in this stackoverflow answer.
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Add a background image to shape in XML Android
...t;/shape>
</item>
<item android:drawable="@drawable/image_name_here" />
</layer-list>
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What does $(function() {} ); do?
...thand for $(document).ready(), as in: $(document).ready(function() {
YOUR_CODE_HERE
});. Sometimes you have to use it because your function is running before the DOM finishes loading.
Everything is explained here: http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
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How do I protect Python code? [closed]
... edited Jul 14 at 1:41
somebody_other
10333 bronze badges
answered Nov 4 '08 at 12:29
S.LottS.Lott
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How do I negate a test with regular expressions in a bash script?
Using GNU bash (version 4.0.35(1)-release (x86_64-suse-linux-gnu), I would like to negate a test with Regular Expressions. For example, I would like to conditionally add a path to the PATH variable, if the path is not already there, as in:
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How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
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Best I can think of is:
template<class T, class... Tail>
auto make_array(T head, Tail... tail) -> std::array<T, 1 + sizeof...(Tail)>
{
std::array<T, 1 + sizeof...(Tail)> a = { head, tail ... };
return a;
}
auto a = make_array(1, 2, 3);
However, this requires the ...
Switch branch names in git
...ing else, then rename your new branch to master:
git branch -m master crap_work
git branch -m previous_master master
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How to send a correct authorization header for basic authentication
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Per https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding and http://en.wikipedia.org/wiki/Basic_access_authentication , here is how to do Basic auth with a header instead of putting the username and password in the URL. Note that this still doesn't hide the u...
Is it better to reuse a StringBuilder in a loop?
...-time );
}
}
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Note that this is with JRE 1.6.0_07.
Based on Jon Skeet's ideas in the edit, here's version 2. Same results though.
public class ScratchPad {
static String a;
public static void main( String[] args ) throws Exception {
long time = Syst...