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How do I change the color of radio buttons?
...;
visibility: visible;
border: 2px solid white;
}
<input type='radio' name="gender"/>
<input type='radio' name="gender"/>
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What is the purpose of “!” and “?” at the end of method names?
... while ActiveRecord::Base#save! raises an exception.
Kernel::exit causes a script to exit, while Kernel::exit! does so immediately, bypassing any exit handlers.
Methods ending in ? return a boolean, which makes the code flow even more intuitively like a sentence — if number.zero? reads like "if t...
jQuery empty() vs remove()
...the selection of its contents and remove the selection itself.
Consider:
<div>
<p><strong>foo</strong></p>
</div>
$('p').empty(); // --> "<div><p></p></div>"
// whereas,
$('p').remove(); // --> "<div></div>"
Both ...
Adding a background image to a element
Is it possible to make a <div> element contain a background image, and if so, how would I go about doing this?
9 An...
Twitter Bootstrap Form File Element Upload Button
...l file input control that looks like a button, you only need HTML:
HTML
<label class="btn btn-default">
Browse <input type="file" hidden>
</label>
This works in all modern browsers, including IE9+. If you need support for old IE as well, please use the legacy approach shown...
How can I make Bootstrap columns all the same height?
...ap 4
Bootstrap 4 uses Flexbox so there is no need for extra CSS.
Demo
<div class="container">
<div class="row ">
<div class="col-md-4" style="background-color: red">
some content
</div>
<div class="col-md-4" style="background-color...
How to sort an IEnumerable
How can I sort an IEnumerable<string> alphabetically. Is this possible?
4 Answers
...
ASP.NET Repeater bind List
I am binding a List<string> to a Repeater control. Now I want to use the Eval function
to display the contents in ItemTemplate like
...
How to use Jackson to deserialise an array of objects
...ss[] myObjects = mapper.readValue(json, MyClass[].class);
As List:
List<MyClass> myObjects = mapper.readValue(jsonInput, new TypeReference<List<MyClass>>(){});
Another way to specify the List type:
List<MyClass> myObjects = mapper.readValue(jsonInput, mapper.getTypeFact...
Simultaneously merge multiple data.frames in a list
...
Another question asked specifically how to perform multiple left joins using dplyr in R . The question was marked as a duplicate of this one so I answer here, using the 3 sample data frames below:
x <- data.frame(i = c("a","b","c"), j = 1:3, stringsAsFactors=FALSE)
y <- ...