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MySQL check if a table exists without throwing an exception
...ABLES";
$res = mysql_query($q, $con);
if ($res)
while ( $row = mysql_fetch_array($res, MYSQL_ASSOC) )
{
foreach( $row as $key => $value )
{
if ( $value = BTABLE ) // BTABLE IS A DEFINED NAME OF TABLE
echo "exist";
else
echo "not exist";
}
}
...
Is there a JSON equivalent of XQuery/XPath?
When searching for items in complex JSON arrays and hashes, like:
15 Answers
15
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What is the purpose of double curly braces in React's JSX syntax?
...The object for style artifacts is of key:value pairs (dictionary versus an array) and that object is expressed as, for example, {color:'#ffffff'}.
So you've got:
style = { jsObj }
and
jsObj = {color:'#ffffff'}
Just like in algebra, when you substitute, it stands that:
style = { {color:'#ffff...
How to know that a string starts/ends with a specific string in jQuery?
...
I apologize for the confusion. I was referring to Array.prototype.indexOf() that is supported only for iE9+ and not String.prototype.indexOf() that's IE4+
– Pedro Lopes
Jul 3 '15 at 15:18
...
How to determine if a type implements an interface with C# reflection
...y after several checks does call
GetInterfaces.
It iterates over the local array, so there will be
no bounds checks.
It uses the == operator which is defined for
Type, so probably is safer than the Equals method (that the Contains
call, will eventually use).
...
Add disabled attribute to input element using Javascript
...hough it is a bit redundant. If you're going to be dealing with a NodeList/array of elements it's silly to select them by the index like that. Iteration or simply selecting only the element you need makes more sense.
– user1596138
Dec 6 '13 at 19:02
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pass string parameter in an onclick function
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Great solution! If you need to pass Arrays or Objects just use JSON.stringify(obj) in the HTML and JSON.parse(event.target.getAttribute('data-arg')) in the JavaScript-layer
– leonheess
Jul 4 '19 at 8:25
...
Node.js Mongoose.js string to ObjectId function
... a bit more flex:
function toObjectId(ids) {
if (ids.constructor === Array) {
return ids.map(mongoose.Types.ObjectId);
}
return mongoose.Types.ObjectId(ids);
}
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Convert Base64 string to an image file? [duplicate]
...
If you are expecting either, you can use array_pop().
– HaLeiVi
Jan 23 '19 at 5:48
1
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Request format is unrecognized for URL unexpectedly ending in
... to:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at BitMeter2.DataBuffer.incrementCurrent(Int64 val)
at BitMeter2.DataBuffer.WindOn(Int64 count, Int64 amount)
at BitMeter2.DataHistory.windOnBuffer(DataBuffer buffer, Int64 totalAmount, Int32 increments)
at...