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Get nth character of a string in Swift programming language
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I just came up with this neat workaround
var firstChar = Array(string)[0]
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Why is Scala's immutable Set not covariant in its type?
...ntations. Common sets are implemented as hashtables, which are non-variant arrays of the key type. I agree it's a slightly annoying irregularity."
So, it seems that all of our efforts to construct a principled reason for this were misguided :-)
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.NET - How can you split a “caps” delimited string into an array?
... initial cap
InsertSpacesBeforeCaps(input.Skip(1))
).ToArray());
}
private static IEnumerable<char> InsertSpacesBeforeCaps(IEnumerable<char> input)
{
foreach (char c in input)
{
if (char.IsUpper(c))
{
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What is Rack middleware?
...r has a method called call that accepts an environment hash and returns an array with the form [status, headers, body] for the webserver to serve. Let's try it out by simply calling rackup. A default rack compliant server, maybe WEBrick or Mongrel will start and immediately wait for requests to serv...
React.js - input losing focus when rerendering
...t particular component rather than re-rendering all the components in that array (I return an array of components in my code). I didn't know it is used for restoring the state after rerendering.
Removing that did the job for me.
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Does Java have something like C#'s ref and out keywords?
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That is not 100% true, If you pass in an array or a class the reference to the array or object is passed in by value, You can change internals to the array or object and it will be reflected in the caller.
– Romain Hippeau
May ...
Face recognition Library [closed]
...ghbors = 2, .accurate = 1, .flags = 0, .size = ccv_size(24, 24) };
ccv_array_t* faces = ccv_bbf_detect_objects(image, &cascade, 1, params);
int i;
for (i = 0; i < faces->rnum; i++)
{
ccv_comp_t* face = (ccv_comp_t*)ccv_array_get(faces, i);
printf("%d %d %d %...
What's a good way to extend Error in JavaScript?
... of Babel, you cannot extend any built-in JavaScript classes such as Date, Array, DOM or Error.
The issue is described here:
Native extends breaks HTMLELement, Array, and others
an object of The class which is extends by base type like Array,Number,Object,String or Error is not instanceof this cl...
How can I disable a button in a jQuery dialog from a function?
...sabling buttons and provide other attributes, use the option that takes an Array argument.
The following example will disable a button, and update its state correctly by applying all of the jQueryUI CSS classes and attributes.
Step 1 - Create your dialog with an Array of buttons:
// Create a dia...
How to clone an InputStream?
...h to fit into memory, you can copy the data from your InputStream to a ByteArrayOutputStream.
Then you can obtain the associated array of bytes and open as many "cloned" ByteArrayInputStreams as you like.
ByteArrayOutputStream baos = new ByteArrayOutputStream();
// Fake code simulating the copy
/...