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Disable ActiveRecord for Rails 4
...all you need to do for an empty Rails app. If you run into problems caused by your existing code, stack trace should give you sufficient information on what you need to change. You might for example have some ActiveRecord configuration in your initializers.
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jQuery and AJAX response header
...t, it must be present in the Access-Control-Expose-Headers header returned by the server.
About the case in question, if it is a CORS request, one will only be able to retrieve the Location header through the XMLHttpRequest object if, and only if, the header below is also present:
Access-Control-E...
How to read if a checkbox is checked in PHP?
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The "on" value may be supported by some browsers when value attribute is not set, but in general it is better to set the value attribute and to check for it on submit.
– m_vitaly
Dec 29 '10 at 14:59
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Runnable with a parameter?
...@kape123 The answer is "it depends". As long as a Runnable object returned by the method exists anywhere, the paramStr will probably not be eligible for garbage collection. It is possible that if the object exists but can never be run again, the JIT (or even javac) may decide to remove it from scope...
HTTP requests and JSON parsing in Python
...sponse'' and json.load gives 'TypeError: the JSON object must be str, not 'bytes''
– M Hornbacher
Dec 23 '15 at 17:46
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How to Set focus to first text input in a bootstrap modal after shown
...ursor to focus on the first input in this modal, and this is not happening by default.
So i wrote this code to do it:
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Jackson serialization: ignore empty values (or null)
...EMPTY
The other option is to configure the ObjectMapper directly, simply by calling
mapper.setSerializationInclusion(Include.NON_NULL);
(for the record, I think the popularity of this answer is an indication that this annotation should be applicable on a field-by-field basis, @fasterxml)
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No Exception while type casting with a null in java
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Isn't this because compiler in bytecode "optimizes" it to t.yield() -> Thread.yeld() anyway? Similar to how final int i = 1; while (i == 1) is optimized to while(true)
– SGal
Feb 1 '18 at 12:45
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No identities are available for signing Xcode 5
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There's no need of steps 3 and 4. They are replaced by: -> Go to Xcode > Preferences > Accounts > Apple ID used > View Details. Press the refresh button so that it downloads the provisioning profile. After it downloads it, click Done. Now you can validate and ...
How to determine if a process runs inside lxc/Docker?
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On Debian /bin/running-in-container is provided by upstart. With the transition to systemd it might go away. I hope not - it sounds useful!
– Max Murphy
Sep 1 '16 at 9:12
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