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To select all elements with class=”mydemo”, you can try to run the following code. Use the .class CSS selector to achieve this,ExampleLive Demo .demo { border: 2px dashed orange; } Heading 1 Heading 1 Heading 2
The rule of five is applied in C++ for resource management. Resource management frees the client from having to worry about the lifetime of the managed object, potentially eliminating memory leaks and other problems in the C++ code. But this management comes at a cost. The Rule of The Big Five states that if you have to write one of the following functions then you have to have a policy for all of them. If we have an Object Foo then we can have a FooManager that handles the resource Foo. When implementing FooManager, you'll likely all need the following ... Read More
Use the animation-direction property to run animation in first backward and then forward. The property is used with the alternate-reverse animation value to achieve this.ExampleLive Demo div { width: 150px; height: 200px; position: relative; background-color: yellow; animation-name: myanim; animation-duration: 2s; animation-direction: alternate-reverse; animation-iteration-count: 3; } @keyframes myanim { 0% {background-color:green; left:0px; top:0px;} 50% {background-color:maroon; left:100px; top:100px;} 100% {background-color:gray; left:0px; top:0px;} }
To select elements whose attribute value contains a specified value, use the [attribute*=”value”] selector.You can try to run the following code to implement the CSS [attribute*="value"] selector,ExampleLive Demo [alt* = "tut"] { border: 5px solid orange; border-radius: 5px; }
Use the [attribute$=”value”] selector to select elements whose attribute value ends with a specified value i.e. “.htm” here.You can try to run the following code to implement the CSS [attribute$="value"] Selector,ExampleLive Demo [href$ = htm] { border: 5px solid orange; border-radius: 5px; } Java Tutorial Java Tutorial PDF
To delay an animation, use the CSS animation-delay property. You can try to run the following code to delay animationExampleLive Demo div { width: 150px; height: 200px; background-color: yellow; animation-name: myanim; animation-duration: 2s; animation-delay: 2s; } @keyframes myanim { from { background-color: green; } to { background-color: blue; } }
To create a sticky navbar, use the position: sticky; property. You can try to run the following code to create a sticky navbar, ExampleLive Demo ul { list-style-type: none; position: sticky; overflow: hidden; top: 0; width: 100%; } li { float: left; ... Read More
GNU C++ compiler, g++, provides extensions to the C++ language. The difference between the two options is whether these GNU extensions that might violate the C++ standard are enabled or not. Note that some extensions can still be in effect when using -std = c++11, if they don't violate the standard.The list of extensions to the C++ language in GNU compiler can be found here − https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Extensions.html
C++11 is the modern C++ standard published in 2011. This brought many major extensions and improvements to the existing language. It was approved by International Organization for Standardization (ISO) on 12 August 2011 and replaced C++03.C++11 was also known as C++0x. This is because, For the next revision, it was supposed that the next Standard after would be done by 2008, but since it was uncertain, it was named C++0x, where the x stood for either 8 or 9. Though planning shifted and it is now called C++11. So, C++0x was the name for the standard before it was published. ... Read More
You can't access a local variable once it goes out of scope. This is what it means to be a local variable. Though, Let us look at an example where you MIGHT be able to access a local variable's memory outside its scope.Example#include int* foo() { int x = 3; return &x; } int main() { int* address = foo(); cout