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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
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Slicing and indexing are two different operations, and inferring the behaviour of one from the other is where your problem lies.
The first argument in slice identifies not the element but the places between elements, defining spans (and...
How do I remove an array item in TypeScript?
...t to undefined.
Better to use the Array.prototype.splice function:
const index = myArray.indexOf(key, 0);
if (index > -1) {
myArray.splice(index, 1);
}
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Multiple modals overlay
...ter solution that is inspired by @YermoLamers & @Ketwaroo.
Backdrop z-index fix
This solution uses a setTimeout because the .modal-backdrop isn't created when the event show.bs.modal is triggered.
$(document).on('show.bs.modal', '.modal', function () {
var zIndex = 1040 + (10 * $('.modal:v...
Undo git update-index --skip-worktree
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Aha! I simply want:
git update-index --no-skip-worktree <file>
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Java: method to get position of a match in a String?
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The family of methods that does this are:
int indexOf(String str)
indexOf(String str, int fromIndex)
int lastIndexOf(String str)
lastIndexOf(String str, int fromIndex)
Returns the index within this string of the first (or last) occurrence of the specified subs...
How to find indices of all occurrences of one string in another in JavaScript?
...dices = [];
while ( (result = regex.exec(str)) ) {
indices.push(result.index);
}
UPDATE
I failed to spot in the original question that the search string needs to be a variable. I've written another version to deal with this case that uses indexOf, so you're back to where you started. As point...
How to check if array element exists or not in javascript?
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Use typeof arrayName[index] === 'undefined'
i.e.
if(typeof arrayName[index] === 'undefined') {
// does not exist
}
else {
// does exist
}
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Pandas convert dataframe to array of tuples
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list(data_set.itertuples(index=False))
As of 17.1, the above will return a list of namedtuples.
If you want a list of ordinary tuples, pass name=None as an argument:
list(data_set.itertuples(index=False, name=None))
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Jquery insert new row into table at a certain index
...) like this:
$('#my_table > tbody > tr').eq(i-1).after(html);
The indexes are 0 based, so to be the 4th row, you need i-1, since .eq(3) would be the 4th row, you need to go back to the 3rd row (2) and insert .after() that.
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Find an item in List by LINQ?
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If you want the index of the element, this will do it:
int index = list.Select((item, i) => new { Item = item, Index = i })
.First(x => x.Item == search).Index;
// or
var tagged = list.Select((item, i) => new { Ite...