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Rails nested form with has_many :through, how to edit attributes of join model?
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Can I call memcpy() and memmove() with “number of bytes” set to zero?
...a
function that locates a character finds no occurrence, a function that compares two
character sequences returns zero, and a function that copies characters copies zero
characters.
So the answer is no; the check is not necessary (or yes; you can pass zero).
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Apply CSS style attribute dynamically in Angular JS
...te {
background-color: pink
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller='MyCtrl' ng-style="{color: myColor}">
<input type="text" ng-model="myColor" placeholder="enter a color name"&g...
“icon-bar” in twitter bootstrap navigation bar
...The three span tags create three horizontal lines that look like a button, commonly known as the "burger" icon.
Take a look at icon-bar in bootstrap.css:
.navbar-toggle .icon-bar {
display: block;
width: 22px;
height: 2px;
background-color: #cccccc;
border-radius: 1px;
}
It is a block ...
C++ unordered_map using a custom class type as the key
...of doing this is to specialize the std::hash template for your key-type.
A comparison function for equality; this is required because the hash cannot rely on the fact that the hash function will always provide a unique hash value for every distinct key (i.e., it needs to be able to deal with collisi...
Pandas dataframe get first row of each group
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, we can use ` to execute the command.
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How to prevent browser page caching in Rails
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Finally figured this out - http://blog.serendeputy.com/posts/how-to-prevent-browsers-from-caching-a-page-in-rails/ in application_controller.rb
After Rails 5:
class ApplicationController < ActionController::Base
before_action :set_cache_headers
private
def set_c...
How to Customize the time format for Python logging?
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