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What is a rune?
...akes 1 ~ 3 bytes, while each rune takes 4 bytes
For string, both len() and index are based on bytes.
For []rune, both len() and index are based on rune (or int32).
Relationships - string & []rune:
When you convert from string to []rune, each utf-8 char in that string becomes a rune.
Similarl...
Java ArrayList replace at specific index
...reated an ArrayList of bulbs, and I'm trying to replace a bulb at specific index with another bulb. So with the following heading, how do I proceed?
...
How long is the SHA256 hash?
...(64), or even a char(64), as the length is always the same, not varying at all.
And the demo :
$hash = hash('sha256', 'hello, world!');
var_dump($hash);
Will give you :
$ php temp.php
string(64) "68e656b251e67e8358bef8483ab0d51c6619f3e7a1a9f0e75838d41ff368f728"
i.e. a string with 64 character...
How do I rename a column in a database table using SQL?
...N MyOldColumn;
For the very simplest of cases (no constraints, triggers, indexes or keys), it will take the above 3 lines. For anything more complicated it can get very messy as you fill in the missing parts.
However, as mentioned above, there are simpler database specific methods if you know whi...
What does ON [PRIMARY] mean?
... drive D:\ of your server. you could then create another filegroup called Indexes. This filegroup could reside on drive E:\ of your server.
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How do I put an 'if clause' in an SQL string?
...bquery should be among the most efficient approaches, assuming there is an index on itemsOrdered.purchaseOrder_ID.
– Gordon Linoff
Dec 21 '12 at 14:27
10
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Initial size for the ArrayList
... and is always greater or equal to the size of the list.
When calling set(index, element) on the list, the index relates to the actual number of the list elements (=size) (which is zero in your code, therefore the AIOOBE is thrown), not to the array length (=capacity) (which is an implementation de...
How do I select elements of an array given condition?
...
This is not a good way to do indexing in NumPy (it will be very slow).
– Alex Riley
Sep 21 '19 at 14:18
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HTML5 Pre-resize images before uploading
...
How do you handle the PHP part of it after you add it to the FormData()? You wouldn't be looking for $_FILES['name']['tmp_name'][$i], for example? I'm trying if(isset($_POST['image']))... but the dataurl not there.
– denikov
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How to set a Default Route (To an Area) in MVC
...lerContext.Controller.GetType().Namespace;
int areaStart = namespa.IndexOf("Areas.");
if (areaStart == -1)
return null;
areaStart += 6;
int areaEnd = namespa.IndexOf('.', areaStart + 1);
string area = namespa.Substring(areaStart, areaEnd - areaSta...