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How to convert array to SimpleXML
...e array_flip won't work as it can't flip arrays (like the another_array inside the main array).
– Lode
Jun 6 '11 at 9:56
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Check Whether a User Exists
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You can also check user by id command.
id -u name gives you the id of that user.
if the user doesn't exist, you got command return value ($?)1
And as other answers pointed out: if all you want is just to check if the user exists, use if with id directl...
Getting attribute using XPath
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Thanks! This solved a similar problem I had with a data attribute inside a Div.
<div id="prop_sample" data-want="data I want">data I do not want</div>
Use this xpath: //*[@id="prop_sample"]/@data-want
Hope this helps someone else!
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Understanding the Rails Authenticity Token
... authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user submits the form, Rails looks for the authenticity_token, compares it to the one stored in the session, and if they match the request is allowed to continue.
Why it happens
Since the a...
How to hide a in a menu with CSS?
I've realized that Chrome, it seems, will not allow me to hide <option> in a <select> . Firefox will.
13 Ans...
rails - Devise - Handling - devise_error_messages
...a stub (though it contains implementation) and that we're supposed to override/replace it. It would have been nice if this was pointed out somewhere in the wiki, which is why i guess there are a few people like us that have been guessing.
So I'm going to try reopening the module and redefine the me...
How to get a string after a specific substring?
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you get distinct id's (that are separated by several thousand) ... im not sure you dont create unneccessary substrings with this
– Joran Beasley
Dec 27 '18 at 5:28
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How do I trigger the success callback on a model.save()?
...bone.html ]. it seems that the attr is mandatory.. if only 'option' is provided the functions assumes it to be the 'attr' and messes up the call
– Kumaresan
Dec 7 '12 at 10:34
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Android Camera Preview Stretched
I've been working on making my custom camera activity on Android, but when rotating the camera, the aspect ratio of the surface view gets messed up.
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Difference between dict.clear() and assigning {} in Python
... find it to be an unfairly harsh judgement.
– cfwschmidt
Jul 7 '14 at 20:16
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Also clear() do not...