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Returning JSON from a PHP Script
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According to the manual on json_encode the method can return a non-string (false):
Returns a JSON encoded string on success or FALSE on failure.
When this happens echo json_encode($data) will output the empty string, which is invalid JSON.
json_encode will for instance fail (and retur...
How to move screen without moving cursor in Vim?
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:help CTRL-E says Mnemonic: Extra lines.
– Niko Bellic
Jan 27 '17 at 23:55
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show 1 more comm...
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
...ain, in another instance of this fragment after rotation.
static final String TASK_FRAGMENT_TAG = "task";
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// At this point the fragment may have been recreated due to a r...
Extension methods cannot be dynamically dispatched
... types to actual types, and it will work.
From what I see now, I'd say:
(string) ViewBag.MagNo
Which would result in
@foreach (var item in Model)
{
@Html.DropDownListFor(modelItem => item.TitleIds,
new SelectList(ViewBag.TitleNames as System.Collections.IEnumerable,
"Titl...
How to test an SQL Update statement before running it?
...s a repeat of other answers, but it has some emotional support to take the extra step for testing update :D
For testing update, hash # is your friend.
If you have an update statement like:
UPDATE
wp_history
SET history_by="admin"
WHERE
history_ip LIKE '123%'
You hash UPDATE and SET out for tes...
Why does .NET use banker's rounding as default?
...s designers choose this as the default?", I just want to point out that an extra function is unnecessary.
Math.Round allows you to specify a MidpointRounding:
ToEven - When a number is halfway between two others, it is rounded toward the nearest even number.
AwayFromZero - When a number is halfwa...
Java switch statement: Constant expression required, but it IS constant
...nt variable" as follows:
We call a variable, of primitive type or type String, that is final and initialized with a compile-time constant expression (§15.28) a constant variable. Whether a variable is a constant variable or not may have implications with respect to class initialization (§12.4....
How to add leading zeros for for-loop in shell? [duplicate]
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Try giving seq a format string. seq -f '%02g' 1 5
– blarf
Oct 6 '16 at 20:40
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Reference alias (calculated in SELECT) in WHERE clause
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I needed some extra conditionals in a MERGE statement, and this was the only way I could make it work. Thanks!
– Eric Burdo
Jul 11 '19 at 17:44
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How to show vertical line to wrap the line in Vim?
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@chutsu The Vim color chart is at: codeyarns.com/2011/07/29/vim-chart-of-color-names
– Ashwin Nanjappa
Sep 11 '15 at 1:04
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