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Android - Round to 2 decimal places [duplicate]
...
You can use String.format("%.2f", d), your double will be rounded automatically.
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Swift - encode URL
... avoid having to manually percent encode your query string:
let scheme = "https"
let host = "www.google.com"
let path = "/search"
let queryItem = URLQueryItem(name: "q", value: "Formula One")
var urlComponents = URLComponents()
urlComponents.scheme = scheme
urlComponents.host = host
urlComponents...
Format floats with standard json module
...t json
from json import encoder
encoder.FLOAT_REPR = lambda o: format(o, '.2f')
print(json.dumps(23.67))
print(json.dumps([23.67, 23.97, 23.87]))
emits:
23.67
[23.67, 23.97, 23.87]
as you desire. Obviously, there should be an architected way to override FLOAT_REPR so that EVERY representation...
How to print binary tree diagram?
...gt; line = lines.get(i);
int hpw = (int) Math.floor(perpiece / 2f) - 1;
if (i > 0) {
for (int j = 0; j < line.size(); j++) {
// split node
char c = ' ';
if (j % 2 == 1) {
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What exactly does git's “rebase --preserve-merges” do (and why?)
...nd it is not the only feature of Git 2.18 (stackoverflow.com/search?q=user%3A6309+%22git+2.18%22), and Git 2.19 (stackoverflow.com/search?q=user%3A6309+%22git+2.19%22)
– VonC
Aug 31 '18 at 19:40
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How to toggle a value in Python
...stmt=stmt1)
>>> t2=timeit.Timer(stmt=stmt2)
>>> print "%.2f usec/pass" % (1000000 * t1.timeit(number=100000)/100000)
7.07 usec/pass
>>> print "%.2f usec/pass" % (1000000 * t2.timeit(number=100000)/100000)
6.19 usec/pass
stmt3="""
toggle = False
for i in xrange(0,100):
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How do you convert a byte array to a hexadecimal string, and vice versa?
..."2F",
"30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3A", "3B", "3C", "3D", "3E", "3F",
"40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4A", "4B", "4C", "4D", "4E", "4F",
"50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5A", "5B", "5C", ...
SVG gradient using CSS
...="url(#gradient)" />
</svg>
See an editable example here:
https://jsbin.com/gabuvisuhe/edit?html,css,output
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What's the difference between Ruby's dup and clone methods?
...dule Foo
def foo; 'foo'; end
end
s1 = Klass.new #=> #<Klass:0x401b3a38>
s1.extend(Foo) #=> #<Klass:0x401b3a38>
s1.foo #=> "foo"
s2 = s1.clone #=> #<Klass:0x401b3a38>
s2.foo #=> "foo"
s3 = s1.dup #=> #<Klass:0x401b3a38>
s3.foo #=> NoMethodError: undef...
How to vertically align an image inside a div
...od start, but oversized images have a wrong ratio.
Here's my fork:
Demo: https://jsbin.com/lidebapomi/edit?html,css,output
HTML:
<div class="frame">
<img src="foo"/>
</div>
CSS:
.frame {
height: 160px; /* Can be anything */
width: 160px; /* Can be anything */
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