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Laravel Check If Related Model Exists
...ning: count(): Parameter must be an array or an object that implements Countable
– CodeGodie
Jun 26 '18 at 22:58
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What does “S3 methods” mean in R?
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method calls look like canvas$drawRect("blue"). RC objects are also
mutable: they don’t use R’s usual copy-on-modify semantics, but are
modified in place. This makes them harder to reason about, but allows
them to solve problems that are difficult to solve with S3 or S4.
There...
Adding div element to body or document in JavaScript
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@felwithe The jQuery version is acceptable, but you may wish to create a node from scratch and apply the styles individually if you need more clarity in your code.
– MacroMan
Mar 22 '18 at 8:59
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passing 2 $index values within nested ng-repeat
...add an ng-if inside the loop, you get the $index messed!
Right way
<table>
<tr ng-repeat="row in rows track by $index" ng-init="rowIndex = $index">
<td ng-repeat="column in columns track by $index" ng-init="columnIndex = $index">
<b ng-if="rowIndex == ...
Difference between initLoader and restartLoader in LoaderManager
...e "query" to load that data. Let's assume we use a CursorLoader querying a table for orders. If a new order is added to that table the CursorLoader uses onContentChanged() to inform the UI to update and show the new order (no need to use restartLoader in this case). If we want to display only open o...
Why a function checking if a string is empty always returns true? [closed]
...ilt-in empty() function for this; see comments and the PHP type comparison tables.
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Maximum length for MySQL type text
...tarea appropriate to the max length of a text field in my MySQL database table. How many characters can a type text field store?
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How to list all Git tags?
...ects under that tag name.
I am working in Teradata and object means view, table etc
How to get number of rows using SqlDataReader in C#
...ible option is to read all rows in a flexible storage (List<> or DataTable) and then copy the data to any format you want. The in-memory operation will always be much more efficient.
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string.charAt(x) or string[x]?
...ttempting to change an individual character won't work, as strings are immutable, i.e., their properties are neither neither "writable" nor "configurable".
str.charAt(i) is better from a compatibility perspective if IE6/IE7 compatibility is required.
str[i] is more modern and works in IE8+ and al...