Why does “foo” appear in both queries? Because all rows that are returned have the same value for the status column. In that case the database is free to return the rows in any order it wants. If you want a reproducable ordering you need to add a second column to your order by statement … Read more
If your element has had .hide() called on it, or if it’s got display:none in css, the browser doesn’t bother rendering it at all. In this case, the answer is not directly. In recent jQueries, you can’t even get its width or height. On the other hand, if you .show() an element, then .hide() it … Read more
use getBoundingClientRect if $el is the actual DOM object: var top = $el.getBoundingClientRect().top; JSFiddle Fiddle will show that this will get the same value that jquery’s offset top will give you Edit: as mentioned in comments this does not account for scrolled content, below is the code that jQuery uses https://github.com/jquery/jquery/blob/master/src/offset.js (5/13/2015) offset: function( options … Read more
Since kafka 0.11.0.0 you can use the script kafka-consumer-groups.sh Example from this answer kafka-consumer-groups.sh –bootstrap-server kafka-host:9092 –group my-group –reset-offsets –to-earliest –all-topics –execute Other options listed in the KIP-122: Add Reset Consumer Group Offsets tooling .———————-.———————————————–.———————————————————————————————————————————————-. | Scenario | Arguments | Example | :———————-+———————————————–+———————————————————————————————————————————————-: | Reset to Datetime | –to-datetime YYYY-MM-DDTHH:mm:SS.sss±hh:mm | Reset to first offset … Read more
If preg_match did not find a match, $matches is an empty array. So you should check if preg_match found an match before accessing $matches[0], for example: function get_match($regex,$content) { if (preg_match($regex,$content,$matches)) { return $matches[0]; } else { return null; } }
First off, don’t have a separate server script for each page, that is just madness. Most applications implement pagination via use of a pagination parameter in the URL. Something like: http://yoursite.com/itempage.php?page=2 You can access the requested page number via $_GET[‘page’]. This makes your SQL formulation really easy: // determine page number from $_GET $page = … Read more
If you want to prevent browser sniffing, the CSS only solution is to set the ul or a container style to overflow: auto. If you look at the source through firebug, it’s the way jQuery does it in their example.
You could just use CSS without any javascript. Give your anchor a class: <a class=”anchor” id=”top”></a> You can then position the anchor an offset higher or lower than where it actually appears on the page, by making it a block element and relatively positioning it. -250px will position the anchor up 250px a.anchor { display: … Read more
I just noticed that the placement option could either be a string or a function returning a string that makes the calculation each time you click on a popover-able link. This makes it real easy to replicate what you did without the initial $.each function: var options = { placement: function (context, source) { var … Read more
— Shameless plug — I have added this function to a library I created vanillajs-browser-helpers: https://github.com/Tokimon/vanillajs-browser-helpers/blob/master/inView.js ——————————- Intersection Observer In modern browsers you can use the IntersectionObserver which detects where an element is on the screen or compared to a parent. The Intersection Observer API provides a way to asynchronously observe changes in the intersection … Read more