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How do I get the RootViewController from a pushed controller?
...andard way of getting the "back" view controller. The reason objectAtIndex:0 works is because the view controller you're trying to access is also the root one, if you were deeper in the navigation, the back view would not be the same as the root view.
...
Pretty Printing a pandas dataframe
...ulate import tabulate
import pandas as pd
df = pd.DataFrame({'col_two' : [0.0001, 1e-005 , 1e-006, 1e-007],
'column_3' : ['ABCD', 'ABCD', 'long string', 'ABCD']})
print(tabulate(df, headers='keys', tablefmt='psql'))
+----+-----------+-------------+
| | col_two | column_3 ...
Can I hide the HTML5 number input’s spin box?
...vely hides the spin-button for webkit browsers (have tested it in Chrome 7.0.517.44 and Safari Version 5.0.2 (6533.18.5)):
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
/* display: none; <- Crashes Chrome on hover */
-webkit-appearance: none;
margin: 0;...
Java string split with “.” (dot) [duplicate]
...o split on a literal dot:
String extensionRemoved = filename.split("\\.")[0];
Otherwise you are splitting on the regex ., which means "any character".
Note the double backslash needed to create a single backslash in the regex.
You're getting an ArrayIndexOutOfBoundsException because your input...
vs2010编译boost若干问题解决 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
vs2010编译boost若干问题解决首先说下环境，win7，vs2010。先在http: www.boost.org users download 上下载boost安装包，我下的是1.52.0版。按照说明，直接运行bootstr...首先说下环境，win7，vs2010。
先在http://www.boost.org/users/download/上下载boost安...
Disable Interpolation when Scaling a
...
Last Updated: 2014-09-12
Is there a canvas property or browser setting I can change programmatically to disable interpolation when scaling elements?
The answer is maybe some day. For now, you'll have to resort to hack-arounds to get ...
When monkey patching an instance method, can you call the overridden method from the new implementat
...
answered Dec 17 '10 at 14:08
Jörg W MittagJörg W Mittag
325k6969 gold badges400400 silver badges603603 bronze badges
...
Why are there two kinds of functions in Elixir?
...
A function can have multiple clauses too:
x = 1
fun = fn
y when y < 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different clauses expecting a different number of arguments:
fn
x, y -> x + y
x -> x
en...
What is the scope of variables in JavaScript?
...isible outside of the loop because var has function scope:
for(var x = 0; x < 5; ++x) {}
console.log(x) // 5 (note this is outside the loop!)
...because of this behavior, you need to be careful about closing over variables declared using var in loops. There is only one instance of varia...
Add Bootstrap Glyphicon to Input Box
... style icon */
.inner-addon .glyphicon {
position: absolute;
padding: 10px;
pointer-events: none;
}
/* align icon */
.left-addon .glyphicon { left: 0px;}
.right-addon .glyphicon { right: 0px;}
/* add padding */
.left-addon input { padding-left: 30px; }
.right-addon input { padding-right...