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How do I make an HTML text box show a hint when empty?
... target a browser that does not support input placeholders, you can use a jQuery plugin called jQuery HTML5 Placeholder, and then just add the following JavaScript code to enable it.
$('input[placeholder], textarea[placeholder]').placeholder();
...
Remove all classes that begin with a certain string
...
With jQuery, the actual DOM element is at index zero, this should work
$('#a')[0].className = $('#a')[0].className.replace(/\bbg.*?\b/g, '');
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What's the difference between a continuation and a callback?
...e:
var array = [1, 2, 3];
forEach(array, function (element, array, index) {
array[index] = 2 * element;
});
console.log(array);
function forEach(array, callback) {
var length = array.length;
for (var i = 0; i < length; i++)
callback(array[i], array, i);
}
...
MySQL Select Date Equal to Today
...this solution is absolutely correct, it does not scale well (cannot use an index on signup_date, even if such an index exists). Prefer Serjio's solution.
– RandomSeed
Oct 21 '15 at 8:01
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Use JSTL forEach loop's varStatus as an ID
...is a LoopTagStatus object, not an int. Use:
<div id="divIDNo${theCount.index}">
To clarify:
${theCount.index} starts counting at 0 unless you've set the begin attribute
${theCount.count} starts counting at 1
shar...
fatal: early EOF fatal: index-pack failed
I have googled and found many solutions but none work for me.
31 Answers
31
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Any implementation of Ordered Set in Java?
... There is no function in LinkedHashSet that allows you to figure out which index the element is in as well.
– searchengine27
May 5 '17 at 1:06
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How do 20 questions AI algorithms work?
Simple online games of 20 questions powered by an eerily accurate AI.
5 Answers
5
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How do I get the first element from an IEnumerable in .net?
...nsion method:
static T ElementAt<T>(IEnumerable<T> items, int index)
{
using(IEnumerator<T> iter = items.GetEnumerator())
{
for (int i = 0; i <= index; i++, iter.MoveNext()) ;
return iter.Current;
}
}
Calling it like so:
int[] items = { 1, 2, 3, ...
With MySQL, how can I generate a column containing the record index in a table?
Is there any way I can get the actual row number from a query?
8 Answers
8
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