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what is the difference between a portlet and a servlet?
...allowed to generate HTML code that contains tags such
as body, frame, frameset, head, html, or title.
A Portlet unlike a servlet doesn’t have URL attached to it so it
cannot be accessed directly. Access is only through the portal page
which holds the portlet.
Portlets can be provided with contro...
using gitignore to ignore (but not delete) files
...
.gitignore has no effect on tracked files.
What you want is to set the assume-unchanged bit on the files in the tmp/ directory. There's a good explanation how to do that here: Git: untrack a file in local repo only and keep it in the remote repo
Also, one-liners for setting assume-unch...
How to delete from select in MySQL?
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SELECT (sub)queries return result sets. So you need to use IN, not = in your WHERE clause.
Additionally, as shown in this answer you cannot modify the same table from a subquery within the same query. However, you can either SELECT then DELETE in separate qu...
Entity Framework 5 Updating a Record
... @Sandman4, that means every other property needs to be there and be set to the current value. In some application designs, this isn't feasible.
– Dan Esparza
Mar 26 '14 at 19:41
...
onclick() and onblur() ordering issue
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What about accessibility at the moment you set mouseDown instead of onClick you kill accessibility for all <button> elements :/
– ncubica
Aug 18 '18 at 1:31
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Safely limiting Ansible playbooks to a single machine?
...ment tasks with a small group of computers. Currently, I have my playbooks set to hosts: all and my hosts file is just a single group with all machines listed:
...
Fill remaining vertical space with CSS using display:flex
...{
flex: 1; /* 1 and it will fill whole space left if no flex value are set to other children*/
background: gold;
overflow: auto;
}
footer {
background: lightgreen;
min-height: 60px; /* min-height has its purpose :) , unless you meant height*/
}
<section>
<header>...
How to switch between hide and view password
...
You can dynamically change the attributes of a TextView. If you would set the XML Atrribute android:password to true the view would show dots if you set it to false the text is shown.
With the method setTransformationMethod you should be able to change this attributes from code. (Disclaimer: ...
anchor jumping by using javascript
...
You can get the coordinate of the target element and set the scroll position to it. But this is so complicated.
Here is a lazier way to do that:
function jump(h){
var url = location.href; //Save down the URL without hash.
location.href = "#"+h; ...
What is the difference between And and AndAlso in VB.NET?
... OrElse and AndAlso are strictly Boolean operators.
Dim a = 3 OR 5 ' Will set a to the value 7, 011 or 101 = 111
Dim a = 3 And 5 ' Will set a to the value 1, 011 and 101 = 001
Dim b = 3 OrElse 5 ' Will set b to the value true and not evaluate the 5
Dim b = 3 AndAlso 5 ' Will set b to the value true...