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What does JVM flag CMSClassUnloadingEnabled actually do?
...
Update This answer is relevant for Java 5-7, Java 8 has this fixed: https://blogs.oracle.com/poonam/about-g1-garbage-collector,-permanent-generation-and-metaspace Kudos go to mt.uulu
For Java 5-7:
The standard Oracle/Sun VM look on the world is: Classes are forever. So once loaded, they sta...
Make Heroku run non-master Git branch
...on master branch.
Run following command in you local repository
git pull https://heroku:YOUR_HEROKU_API_KEY@git.heroku.com/YOUR_APP_NAME.git
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Can I use twitter bootstrap without jquery?
...nce they are jQuery plugins.
v3: http://getbootstrap.com/javascript/
v4: https://getbootstrap.com/docs/4.0/getting-started/javascript/
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How to count items in JSON object using command line?
...uppose it was in a property called records, like {"records":[...]}.
$ curl https://my-source-of-json.com/list | jq -r '.records' | jq length
2
$
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Can I install the “app store” in an IOS simulator?
...From Xcode 8.2,drag and drop the build to simulator for the installation.
https://stackoverflow.com/a/41671233/1522584
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Run task only if host does not belong to a group
... not in group_names"
group_names is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information-about-other-hosts-with-magic-variables :
group_names is a list (array) of all the groups the current host is in.
...
TargetedPatchingOptOut: “Performance critical to inline across NGen image boundaries”?
... don't need it in your own. You can find more information about that here: https://stackoverflow.com/a/14982340/631802
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Selecting multiple classes with jQuery
...therClass').removeClass('theclass');
According to jQuery documentation:
https://api.jquery.com/multiple-selector/
When can select multiple classes in this way:
jQuery(“selector1, selector2, selectorN”) // double Commas. // IS valid.
jQuery('selector1, selector2, selectorN') // single Commas...
What does “:=” do?
...B, or sometimes A≜B.
■ http://mathworld.wolfram.com/Defined.html
■ https://math.stackexchange.com/questions/182101/appropriate-notation-equiv-versus
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Submitting HTML form using Jquery AJAX
...l(function() {
$('#result').text('failed');
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form id="formoid" action="studentFormInsert.php" title="" method="post">
<div>
<label class="title">First Name&lt...