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How to style the with only CSS?
...compatibility? I know many JavaScript ways which customize the dropdown to convert into <li> , which I'm not asking about.
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Specify custom Date format for colClasses argument in read.table/read.csv
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You can write your own function that accepts a string and converts it to a Date using the format you want, then use the setAs to set it as an as method. Then you can use your function as part of the colClasses.
Try:
setAs("character","myDate", function(from) as.Date(from, format=...
What is a race condition?
...x == 5)" and "y = x * 2" above,
// y will not be equal to 10.
}
The point being, y could be 10, or it could be anything, depending on whether another thread changed x in between the check and act. You have no real way of knowing.
In order to prevent race conditions from occurring, you would ty...
Find the min/max element of an Array in JavaScript
...e to debug. A jquery array works fine on everything but the iPad. I had to convert the array to a true native array for it to work. Only affected the single device for some reason Math.max.apply(null, $.makeArray(array));
– Forrest
Jul 25 '12 at 21:17
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Pandas: Looking up the list of sheets in an excel file
...sed only zipfile which is an in-built module and xmltodict which I used to convert the XML into an easily iterable dictionary. Although you can look at @divingTobi's answer below where you can read the same file without actually extracting the files within.
– Dhwanil shah
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
I recently attended an interview where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
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How to 'minify' Javascript code
...alert(condition?'yes':'no')
//if the condition is true alert yes else no
Convert a number to a string or viceversa
var a=10;
var b=a.toString();
var c=parseFloat(b)
//same as
var a=10,b,c;
b=a+'';
c=b*1
//shorter
var a=10;
a+='';//String
a*=1;//Number
Round a number
var a=10.3899845
var b=Mat...
What is the difference between ndarray and array in numpy?
...is in C code, here in multiarray, but you can start looking at the ndarray interfaces here:
https://github.com/numpy/numpy/blob/master/numpy/core/numeric.py
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Ways to save enums in database
...gging and support way too difficult. We store the actual enumeration value converted to string:
public enum Suit { Spade, Heart, Diamond, Club }
Suit theSuit = Suit.Heart;
szQuery = "INSERT INTO Customers (Name, Suit) " +
"VALUES ('Ian Boyd', %s)".format(theSuit.name());
and then read...
from jquery $.ajax to angular $http
...ore concise (especially using .post() method)
AngularJS will take care of converting JS objects into JSON string and setting headers (those are customizable)
Callback functions are named success and error respectively (also please note parameters of each callback) - Deprecated in angular v1.5
use t...