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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
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Edited
ES6 solution:
[...new Set(a)];
Alternative:
Array.from(new Set(a));
Old response. O(n^2) (do not use it with large arrays!)
var arrayUnique = function(a) {
return a.reduce(function(p, c) {
if (p.index...
how to remove X-Powered-By in ExpressJS [duplicate]
I want to remove X-Powered-By for Security,Save Bandwidth in ExpressJS(node.js). how to do it?
it could be filter(app.use) ?
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Renaming xcode 4 project and the actual folder
...folder? The thing is that renaming the project in Xcode, does only rename within Xcode (Though it is progress compared to previous) - but why Xcode is not renaming the folder in the filesystem I don't know.
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Method names for getting data [closed]
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It is all about consistent semantics;
In your question title you use getting data. This is extremely
general in a sense that you need to define what getting means
semantically significantly unambiguous way. I offer the follo...
What does the CSS rule “clear: both” do?
..., and will explain to you graphically why clear: both; is required or what it does...
Generally designers float the elements, left or to the right, which creates an empty space on the other side which allows other elements to take up the remaining space.
Why do they float elements?
Elements are f...
Prevent direct access to a php include file
... an include. Therefore I would like to throw an error instead of executing it when it's accessed directly by typing in the URL instead of being included.
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How do I make the first letter of a string uppercase in JavaScript?
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The basic solution is:
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
console.log(capitalizeFirstLetter('foo')); // Foo
Some other answers modify String.prototype (this answer used to as well),...
What's the right way to decode a string that has special HTML entities in it? [duplicate]
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This is my favourite way of decoding HTML characters. The advantage of using this code is that tags are also preserved.
function decodeHtml(html) {
var txt = document.createElement("textarea");
txt.innerHTML = html;
return txt.va...
Regex empty string or email
...l accept an empty string. Is this possible through Regex only? Accepting either empty string or email only? I want to have this on Regex only.
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Enum ToString with user friendly strings
...NotCompleted,
Completed,
Error
};
Then use this code to retrieve it:
public static string GetDescription<T>(this T enumerationValue)
where T : struct
{
Type type = enumerationValue.GetType();
if (!type.IsEnum)
{
throw new ArgumentException("EnumerationValue m...