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What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)
...[disabled] {
cursor: default;
background-image: none;
opacity: 0.65;
filter: alpha(opacity=65);
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
color: #333;
background-color: #E6E6E6;
}
Note how the [disabled] property is targeted as well as a...
Difference between binary semaphore and mutex
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708
They are NOT the same thing. They are used for different purposes!
While both types of semapho...
What does the question mark in Java generics' type parameter mean?
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230
? extends HasWord
means "A class/interface that extends HasWord." In other words, HasWord its...
What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?
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Updated 2020...
Bootstrap 5
In Bootstrap 5 (alpha) there is a new -xxl- size:
col-* - 0 (xs)
col-sm-* - 576px
col-md-* - 768px
col-lg-* - 992px
col-xl-* - 1200px
col-xxl-* - 1400px
Bootstrap 5 Grid Demo
Bootstrap 4
In Bootstrap 4 the...
What is null in Java?
...nce of anything?
No, there is no type which null is an instanceof.
15.20.2 Type Comparison Operator instanceof
RelationalExpression:
RelationalExpression instanceof ReferenceType
At run time, the result of the instanceof operator is true if the value of the RelationalExpression is no...
Calling virtual functions inside constructors
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jun 7 '09 at 15:52
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How do you unit test private methods?
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edited Dec 14 '17 at 10:14
Raedwald
37.7k2626 gold badges116116 silver badges194194 bronze badges
an...
How to hide image broken Icon using only CSS/HTML?
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Kevin JantzerKevin Jantzer
7,90622 gold badges2323 silver badges4949 bronze badges
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Should I instantiate instance variables on declaration or in the constructor?
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Robert Harvey
164k4141 gold badges308308 silver badges467467 bronze badges
answered Jan 3 '10 at 7:27
BozhoBozho
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“Undefined reference to” template class constructor [duplicate]
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390
This is a common question in C++ programming. There are two valid answers to this. There are adv...