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Checking if an object is a given type in Swift
...ive types, the superclass would be Any. Here is an example:
21> func test (obj:Any) -> String {
22. if obj is Int { return "Int" }
23. else if obj is String { return "String" }
24. else { return "Any" }
25. }
...
30> test (1)
$R16: String = "Int"
31> test ("abc")...
What are the performance characteristics of sqlite with very large database files? [closed]
...
So I did some tests with sqlite for very large files, and came to some conclusions (at least for my specific application).
The tests involve a single sqlite file with either a single table, or multiple tables. Each table had about 8 colum...
Hiding user input on terminal in Linux script
...
@electron I tested on my box, not only it doesn't move the cursor, when I try to highlight the line where I typed in my password, I can't seem to paste it later. Both should happen if what the book says is true. I'm guessing maybe a diff...
JavaScript hide/show element
...
I miss a link for testing that's why you can try here: konzertagentur-koerner.de/test But thanks for the good code
– Timo
Nov 5 '13 at 20:04
...
Difference between a Structure and a Union
...stored at 4 byte addresses and is 4 bytes long. The following union
union test {
int a;
long b;
};
could have a sizeof of 4, and an alignment requirement of 4. Both an union and a struct can have padding at the end, but not at their beginning. Writing to a struct changes only the value o...
JavaScript - Get Portion of URL Path
...e: http://jessepollak.me/chrome-was-wrong-ie-was-right
This works in the latest versions of Chrome and Firefox. I do not have versions of Internet Explorer to test, so please test yourself with the JSFiddle example.
JSFiddle example
There's also a coming URL object that will offer this support for U...
How to check whether a script is running under Node.js?
...p;
(process.release.name.search(/node|io.js/) !== -1)
This statement was tested with Node 5.5.0, Electron 0.36.9 (with Node 5.1.1) and Chrome 48.0.2564.116.
Identify Node (>= 0.10.0) or io.js
(typeof process !== 'undefined') &&
(typeof process.versions.node !== 'undefined')
@daluege...
How do I check for C++11 support?
...ive page is at https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations
In summary, each feature has a standard macro defined that you can check with #ifdef. For example, to check for user defined literals, you can use
#ifdef __cpp_user_defined_literals
...
If list index exists, do X
...cept IndexError:
print('sorry, no 5')
# Note: this only is a valid test in this context
# with absolute (ie, positive) index
# a relative index is only showing you that a value can be returned
# from that relative index from the end of the list...
However, by definition, all items in a Py...
In which order do CSS stylesheets override?
... see the same one I worked out: http://jsfiddle.net/Wtk67/
<div class="test">Hello World!!</div>
<style>
.test{
color:blue;
}
.test{
color:red;
}
</style>
If you interchange the order of .test{}, then you can see the HTML takes value of t...