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What is a practical use for a closure in JavaScript?
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Suppose, you want to count the number of times user clicked a button on a webpage.
For this, you are triggering a function on onclick event of button to update the count of the variable
<button onclick="updateClickCount()">click me</button>
Now there could be many approaches like...
Database Design for Revisions?
...cks - for heavily updated databases the performance may be hit, but for my web-app, we get many more reads than writes and it seems to be performing pretty well. We even wrote a little VB.NET utility to automatically write the triggers based on the table definitions.
Just a thought!
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When to encode space to plus (+) or %20?
...hard to understand purpose of adding URLSearchParams developers.google.com/web/updates/2016/01/urlsearchparams, which works in some legacy way (serialize SPACE into '+'). It's even not supported in IE11!
– Nymphetamine
May 15 at 21:08
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How to extract public key using OpenSSL?
..., the above technique works for the general case, it didn't work on Amazon Web Services (AWS) PEM files.
I did find in the AWS docs the following command works:
ssh-keygen -y
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html
edit
Thanks @makenova for the complete line:
ssh-k...
AngularJS $resource RESTful example
I would like to use $resource to call my RESTful web service, (which I am still working on) but I would like to find out if I got my AngularJS script correct first.
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SVG gradient using CSS
...as not and might not make it into the spec.
– Arthur Weborg
Mar 6 '15 at 20:20
How to change the direction in this cas...
When and how should I use a ThreadLocal variable?
...u're done, any references it holds to classes loaded as part of a deployed webapp will remain in the permanent heap and will never get garbage collected. Redeploying/undeploying the webapp will not clean up each Thread's reference to your webapp's class(es) since the Thread is not something owned by...
NodeJS - Error installing with NPM
...l never have this. So I'm lobbying Joyent to the encourage them to include web sockets as part of CORE node and also to possible ship a GNU gcc compiler as part of NodeJS install so we can permanently fix this problem.
Feel free to add your vote at:
https://github.com/joyent/node/issues/8005#iss...
When to delete branches in Git?
... -dr remoteName\branchName
Then I delete the branch on GitHub. I use the web interface, but the equivalent command is below.
git push remoteName :branchName
Even if the branch is never merged, typically I would still like to keep the commits around for posterity. However I still like to delete ...
Javascript Functions and default parameters, not working in IE and Chrome
...can't do this" - Mozilla MDN says we can? developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… Are you just saying that you can't do it in IE or are you saying the Mozilla docs are inaccurate?
– php-b-grader
Jun 19 at 0:12
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