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How to saveHTML of DOMDocument without HTML wrapper?

I'm the function below, I'm struggling to output the DOMDocument without it appending the XML, HTML, body and p tag wrappers before the output of the content. The suggested fix: ...
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How to run test methods in specific order in JUnit4?

... I think it's quite important feature for JUnit, if author of JUnit doesn't want the order feature, why? I'm not sure there is a clean way to do this with JUnit, to my knowledge JUnit assumes that all tests can be performed in an a...
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REST API Login Pattern

... Principled Design of the Modern Web Architecture by Roy T. Fielding and Richard N. Taylor, i.e. sequence of works from all REST terminology came from, contains definition of client-server interaction: All REST interactions are stateless. That is, each request c...
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What command means “do nothing” in a conditional in Bash?

Sometimes when making conditionals, I need the code to do nothing, e.g., here, I want Bash to do nothing when $a is greater than "10", print "1" if $a is less than "5", otherwise, print "2": ...
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Why does the lock object have to be static?

It is very common to use a private static readonly object for locking in multi threading. I understand that private reduces the entry points to the locking object by tightening the encapsulation and therefore access to the most essential. ...
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Javascript Array.sort implementation?

Which algorithm does the JavaScript Array#sort() function use? I understand that it can take all manner of arguments and functions to perform different kinds of sorts, I'm simply interested in which algorithm the vanilla sort uses. ...
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Foreign key constraints: When to use ON UPDATE and ON DELETE

...sing MySQL Workbench, which is pretty cool because you can do diagrams and it converts them :P 3 Answers ...
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Unix shell script find out which directory the script file resides?

Basically I need to run the script with paths related to the shell script file location, how can I change the current directory to the same directory as where the script file resides? ...
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How to force a html5 form validation without submitting it via jQuery

I have this form in my app and I will submit it via AJAX, but I want to use HTML5 for client-side validation. So I want to be able to force the form validation, perhaps via jQuery. ...
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How to write DataFrame to postgres table?

There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine. ...