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How to determine if a record is just created or updated in after_save
...allback runs after the after_create or after_update callback (see guides.rubyonrails.org/active_record_callbacks.html).
– Mark
Jul 16 '14 at 14:16
3
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Disable/enable an input with jQuery?
...fficient because it has to select * then loop over each element and filter by tagname - if you pass the 4 tagname selectors directly it is MUCH faster. Also, :input is not a standard CSS selector, so any performance gains that are possible from querySelectorAll are lost
– gnar...
How to get label of select option with jQuery?
The value can be retrieved by $select.val() .
11 Answers
11
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How do I pass multiple parameters into a function in PowerShell?
...e, Position=1)]
[int] $Id
)
}
Then you could either call it by specifying the parameter name, or you could just use positional parameters, since you explicitly defined them. So either of these would work:
Get-Something -Id 34 -Name "Blah"
Get-Something "Blah" 34
The first example w...
jQuery - getting custom attribute from selected option
...til I used the "id" attribute even though my attribute name is "ItemKey". By using the debugger
Chrome Debug
I was able to see that the selected option had attributes: with a map to the JQuery "id" and the value.
<html>
<head>
<script type="text/JavaScript" src="https://ajax.goog...
Remove ALL white spaces from text
...ead I had to go ahead and using .replace(/\s+/g, '') which is totally fine by me.
– Dan Bradbury
Jan 28 '15 at 21:21
9
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ExpressJS - throw er Unhandled error event
...ll other nodes which are using that post.
for that, you can check all node by
ps -e
OR for node process only use ps -ef | grep node
This will give you the list of all node process with id
to Kill all node process
sudo killall -9 node
Or for the specific id sudo kill -9 id
...
Jenkins Host key verification failed
...
Jenkins is a service account, it doesn't have a shell by design. It is generally accepted that service accounts. shouldn't be able to log in interactively.
To resolve "Jenkins Host key verification failed", do the following steps. I have used mercurial with jenkins.
1)Execute ...
Select rows which are not present in other table
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to get the width and height of an android.widget.ImageView?
...you:
int finalHeight, finalWidth;
final ImageView iv = (ImageView)findViewById(R.id.scaled_image);
final TextView tv = (TextView)findViewById(R.id.size_label);
ViewTreeObserver vto = iv.getViewTreeObserver();
vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
public boolean onP...