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How to get the original value of an attribute in Rails

... rails documentation http://api.rubyonrails.org/classes/ActiveModel/Dirty.html Model.attribute_was return previous value :D share | improve this answer | follow ...
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What does an underscore in front of an import statement mean?

... https://golang.org/doc/effective_go.html#blank It's either a work in progress, or imported for side effects. In this case, I believe it's for the side effects, as described in the doc. ...
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How can I add a boolean value to a NSDictionary?

...S; For more info on that: http://clang.llvm.org/docs/ObjectiveCLiterals.html share | improve this answer | follow | ...
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jQuery selector for inputs with square brackets in the name attribute

...]"]') Now, I'm a little confused by your example; what exactly does your HTML look like? Where does the string "inputName" show up, in particular? edit fixed bogosity; thanks @Dancrumb share | i...
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How to send only one UDP packet with netcat?

...es the given argument via /bin/bash" - commandlinux.com/man-page/man1/nc.1.html – Blake Neal Aug 28 '19 at 15:04 ...
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Rails filtering array of objects by attribute value

...tition' function to make things sweet. ruby-doc.org/core-1.9.3/Enumerable.html#method-i-partition – Vlad Jun 20 '16 at 21:04 ...
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When to choose mouseover() and hover() function?

...ent is sent to an element when the mouse pointer enters the element. Any HTML element can receive this event. share | improve this answer | follow | ...
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How to simulate a click by using x,y coordinates in JavaScript?

...it was clicked. All modern browsers support document.elementFromPoint and HTMLElement.prototype.click(), since at least IE 6, Firefox 5, any version of Chrome and probably any version of Safari you're likely to care about. It will even follow links and submit forms: document.elementFromPoint(x, y...
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Why are `private val` and `private final val` different?

...Java regarding binary compatibility - docs.oracle.com/javase/specs/jls/se7/html/… – Eran Medan Jul 10 '13 at 3:02 add a comment  |  ...
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How to set default values in Rails?

... More info here: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html 2. Use a callback E.G. before_validation_on_create More info here: http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html#M002147 sha...