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How do I clone a Django model instance object and save it to the database?
...e.
More on UPDATE/INSERT here.
Official docs on copying model instances: https://docs.djangoproject.com/en/2.2/topics/db/queries/#copying-model-instances
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How to check whether a given string is valid JSON in Java
...lint
or combine using a parser with running jshint using javax.script.*.
https://www.npmjs.org/package/jshint
https://github.com/webjars/jshint
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C++ Dynamic Shared Library on Linux
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Can I get JSON to load into an OrderedDict?
... cPython implementation has preserved the insertion order of dictionaries (https://mail.python.org/pipermail/python-dev/2016-September/146327.html). This means that the json library is now order preserving by default. Observe the difference in behaviour between python 3.5 and 3.6. The code:
import ...
How do you get the rendered height of an element?
...inks using elem.style.height in the top of these answers...
INNER HEIGHT:
https://developer.mozilla.org/en-US/docs/Web/API/Element.clientHeight
document.getElementById(id_attribute_value).clientHeight;
OUTER HEIGHT:
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement.offsetHeight
doc...
How do I finish the merge after resolving my merge conflicts?
...hat-must-be-resolved-use-the-command-line/
That page contains this video: https://www.youtube.com/watch?v=Cc4xPp7Iuzo
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jQuery AJAX cross domain
.... Setting it to * will accept cross-domain AJAX requests from any domain. (https://developer.mozilla.org/en/http_access_control)
The method to do this will vary from language to language, of course. Here it is in Rails:
class HelloController < ApplicationController
def say_hello
headers['...
React.js - input losing focus when rerendering
... />
</Container>
)
}
}
Ref. to the solution: https://github.com/styled-components/styled-components/issues/540#issuecomment-283664947
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How do I print debug messages in the Google Chrome JavaScript Console?
...and Firefox!
Also for stack traces in Firefox use:
console.trace();
As https://developer.mozilla.org/en-US/docs/Web/API/console says.
Happy hacking!
UPDATE: Some libraries are written by bad people which redefine the console object for their own purposes. To restore the original browser consol...
docker mounting volumes on host
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