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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
...g the code from the OP's link (api.rubyonrails.org/classes/ActionView/Base.html) <% if local_assigns.has_key? :headline %> Headline: <%= headline %> <% end %> -- has_key avoids the nil / false situation, and probably can be shortened to one line like the answer here
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Don't reload application when orientation changes
... site:
http://developer.android.com/guide/topics/manifest/activity-element.html
Also, this is apparently a bad practice so read the link below about Handling Runtime Changes:
http://developer.android.com/guide/topics/resources/runtime-changes.html
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How to define Gradle's home in IDEA?
... defined by jetbrains: https://www.jetbrains.com/help/idea/gradle-settings.html
A. Default Wrapper (recommended)
If you are able, select this recommended option. If it is grayed out, see option C, which should then set your default for all subsequent projects.
B. Gradle 'Wrapper' Task Config...
Facebook Like Button - how to disable Comment pop up?
...;
overflow: hidden;
}
and render the Facebook button with the normal HTML5 code, something like this:
<div class="fb-like" data-layout="button_count" data-show-faces="false"></div>
gr-
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How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?
...", strReturn = "";
jQuery.ajax({
url: strUrl,
success: function(html) {
strReturn = html;
},
async:false
});
return strReturn;
}
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Difference between \b and \B in regex
...rd characters.
Source: http://www.regular-expressions.info/wordboundaries.html
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What is the maximum length of a valid email address?
...defines 254 characters as the limit. Located here - https://tools.ietf.org/html/rfc5321#section-4.5.3
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Foreign key constraints: When to use ON UPDATE and ON DELETE
...id cascades constraints.
http://dev.mysql.com/doc/refman/5.6/en/triggers.html
MySQL triggers activate only for changes made to tables by SQL statements. They do not activate for changes in views, nor by changes to tables made by APIs that do not transmit SQL statements to the MySQL Server
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jQuery: more than one handler for same event
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According to DOM Level 3 (referencing HTML 5 spec), event handlers are executed in the order in which they are registered -w3.org/TR/DOM-Level-3-Events/#event-phase and w3.org/TR/2014/REC-html5-20141028/…. Event handlers can be removed by passing a reference to...
jQuery get mouse position within an element
...ar relativeYPosition = (e.pageY - parentOffset.top);
$("#header2").html("<p><strong>X-Position: </strong>"+relativeXPosition+" | <strong>Y-Position: </strong>"+relativeYPosition+"</p>")
}).mouseout(function(){
$("#header2").html("<p><s...