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How can I get the corresponding table header (th) from a table cell (td)?
... $th = $td.closest('tbody').prev('thead').find('> tr > th:eq(' + $td.index() + ')');
Or a little bit simplified
var $th = $td.closest('table').find('th').eq($td.index());
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What's the difference between “groups” and “captures” in .NET regular expressions?
...r the above, nor what's said in the other post really seems to answer your question, consider the following. Think of Captures as a kind of history tracker. When the regex makes his match, it goes through the string from left to right (ignoring backtracking for a moment) and when it encounters a mat...
Flatten an Array of Arrays in Swift
...ay.flatten(0, self)
}
public static func flatten<Element>(_ index: Int, _ toFlat: [Element]) -> [Element] {
guard index < toFlat.count else { return [] }
var flatten: [Element] = []
if let itemArr = toFlat[index] as? [Element] {
flatten = fl...
SQL Server SELECT LAST N Rows
...hout a sort of some nature this simply won't work, the best solution is to index the major columns being hit and run with something like the above query.
– JonVD
Nov 16 '10 at 23:15
...
Comparing two dataframes and getting the differences
...dentical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want not to find changes, but symmetric difference. For that, one approach might be concatenate datafr...
Jinja2 template variable if None Object set a default value
...
This works for a simple variable, but not for this question where you're looking to grab a field out of a more complex one. I would downvote this, since it's not a good answer to the original question... and yet at the same time, knowing about default is exactly what I neede...
Manipulating an Access database from Java without ODBC
...s databases without using ODBC. It uses two other packages, Jackcess and HSQLDB, to perform these tasks. The following is a brief overview of how to get it set up.
Option 1: Using Maven
If your project uses Maven you can simply include UCanAccess via the following coordinates:
groupId: net.sf...
Express: How to pass app-instance to routes from a different file?
...redis and db in my case. Won't it effect application performance ? eg: in index.js app.set('redis',redis_client); in routes/example.js router = require('express').Router(); route.get('/test',(req,res,next)=>{ conosle.log(req.app.get('redis')); return res.send("//done"); })
...
Remove duplicates from an array of objects in JavaScript
...How about with some es6 magic?
things.thing = things.thing.filter((thing, index, self) =>
index === self.findIndex((t) => (
t.place === thing.place && t.name === thing.name
))
)
Reference URL
A more generic solution would be:
const uniqueArray = things.thing.filter((thing,...
select * vs select column
...ven when the set of columns requested are a subset of those stored in some index, the query processor must fetch every column stored in that index, not just the ones requested, for the same reasons - ALL I/O must be done in pages, and index data is stored in IO Pages just like table data. So if you...