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Check if an element is present in an array [duplicate]
...ates an includes() method for arrays that specifically solves the problem, and so is now the preferred method.
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, 2); // false (second parameter is the index position in this array at which to begin searching...
Why does range(start, end) not include end?
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You explain that range(x) should start with 0 and x will be the "length of the range". OK. But you didn't explain why range(x,y) should start with x and end with y-1. If the programmer wants a for-loop with i ranging from 1 to 3, he has to explicitly add 1. Is this reall...
How to check whether a file is empty or not?
... that's fine too. but i don't want to import stat. Its short and sweet enough and the size position in the returned list is not going to change anytime soon.
– ghostdog74
Mar 24 '10 at 13:48
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Join a list of strings in python and wrap each string in quotation marks
...it is not better, it is very slightly faster. My solution is more pythonic and readable
– jamylak
Oct 15 '16 at 1:14
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How to run a background task in a servlet based web application?
I'm using Java and I want to keep a servlet continuously running in my application, but I'm not getting how to do it. My servlet has a method which gives counts of the user from a database on a daily basis as well as the total count of the users from the whole database. So I want to keep the servlet...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...sole.log([0, 5, 0, 3, 0, 1, 0].filter_0());
//prints [5,3,1]
This is a standard way to extend objects and add new methods. Lots of libraries do this.
However, let's look at how for in works now:
var listeners = ["a", "b", "c"];
for (o in listeners) {
console.log(o);
}
//prints:
// 0
// 1
//...
How to echo with different colors in the Windows command line
I know that the color bf command sets the colors of the whole command line window but I wanted to to print one single line in a different color.
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CSS: Set a background color which is 50% of the width of the window
... the rest of your content has a z-index higher than the background element and you should be good to go.
Modern Browsers
If newer browsers are your only concern, there are a couple other methods you can use:
Linear Gradient:
This is definitely the easiest solution. You can use a linear-gradien...
How to hash a password
... byte array you could use
var data = Encoding.ASCII.GetBytes(password);
and to get back string from md5data or sha1data
var hashedPassword = ASCIIEncoding.GetString(md5data);
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How to detect the device orientation using CSS media queries?
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CSS to detect screen orientation:
@media screen and (orientation:portrait) { … }
@media screen and (orientation:landscape) { … }
The CSS definition of a media query is at http://www.w3.org/TR/css3-mediaqueries/#orientation
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