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The slideToggle() method in jQuery is used to toggle between the slideUp() and slideDown() methods.SyntaxThe syntax is as follows −$(selector).slideToggle(speed, easing, callback)Above, the parameter speed is the speed of the slide effect. Here, easing is the speed of the element in different points of the animation, whereas callback is a function to be executed after slideToggle() completes.Let us now see an example to implement the jQuery slideToggle() method −Example Live Demo $(document).ready(function(){ $("button").click(function(){ $("p").slideToggle(); }); }); Exam Info Examination begins on 24th December. ... Read More
Here we will see that is the upper_bound() function in C++ STL. This function returns an iterator that points to the first element in the container, which is considered to go after val. The syntax is like:iterator upper_bound (const value_type& val); const_iterator upper_bound (const value_type& val) const;The return value is an iterator, pointing to the first element in the container which is considered to go after val.Example Live Demo#include #include using namespace std; int main () { set myset; set::iterator itlow, itup; for (int i = 1; i < 10; i++) myset.insert(i*10); itup = myset.upper_bound ... Read More
To convert an image to Grayscale in CSS3, use the grayscale value for filter property.ExampleLet us see an example − Live Demo img.demo { filter: brightness(120%); filter: contrast(120%); filter: grayscale(130%); } Spring Framework Learn MySQL Below image is brighter and has more contrast than the original image above. With that the image is in grayscale: Output
The slideDown() method in jQuery is used to display the selected elements.SyntaxThe syntax is as follows −$(selector).slideDown(speed, easing, callback)Above, the parameter speed is the speed of the slide effect. Here, easing is the speed of the element in different points of the animation, whereas callback is a function to be executed after slideDown() completes.ExampleLet us now see an example to implement the jQuery slideDown() method − Live Demo $(document).ready(function(){ $(".button1").click(function(){ $("p").slideUp(); }); $(".button2").click(function(){ $("p").slideDown(); }); }); ... Read More
Here we will see the Shuffle and random_shuffle in C++. These functions are used to shuffle array elements in C++. We can use the vector also instead of arrays, the usage is similar. Let us see the random_shuffle() first. It is used to randomly rearrange the elements in range [left, right). This function randomly swaps the positions of each element with the position of some randomly chosen positions.We can provide some random generator function to tell which element will be taken in every case. If we do not provide some, it will use its own random generator function.Example Live Demo#include ... Read More
Text EditorThis will be used to type your program. Examples of few editors include Windows Notepad, OS Edit command, Brief, Epsilon, EMACS, and vim or vi.Name and version of text editor can vary on different operating systems. For example, Notepad will be used on Windows and vim or vi can be used on windows as well as Linux, or UNIX.The files you create with your editor are called source files and for C++ they typically are named with the extension .cpp, .cp, or .c.A text editor should be in place to start your C++ programming.C++ CompilerThis is an actual C++ ... Read More
It is used to extracts characters from the stream as unformatted input and stores them into s as a c-string, until either the extracted character is the delimiting character, or n characters have been written to s (including the terminating null character). The declaration is like:basic_istream& getline (char_type* s, streamsize n ); basic_istream& getline (char_type* s, streamsize n, char_type delim);The parameters are ‘s’ pointer to an array of characters, where the extracted characters are stored as a c_string. Next parameter is ‘n’ this is the maximum number of characters to write (including the terminating character). The third parameter is ‘delim’ ... Read More
The innerWidth() method in jQuery is used to return the inner width of an element. The method includes padding, but the border and margin aren’t included.SyntaxThe syntax is as follows −$(selector).innerWidth()ExampleLet us now see an example to implement the jQuery innerWidth() method − Live Demo $(document).ready(function(){ $("button").click(function(){ document.getElementById("demo").innerHTML = "Inner Width of DIV = " + $("div").innerWidth() }); }); Demo Box Inner Width of div OutputThis will produce the following output −Click the button to get inner width −
As we know function overloading is one of the core feature of the object oriented languages. We can use the same name of the functions; whose parameter sets are different. Here we will see how to overload the constructors of C++ classes. The constructor overloading has few important concepts.Overloaded constructors must have the same name and different number of argumentsThe constructor is called based on the number and types of the arguments are passed.We have to pass the argument while creating objects, otherwise the constructor cannot understand which constructor will be called.Example Live Demo#include using namespace std; class Rect{ ... Read More
In C++, we use different namespaces. We can also create our own namespaces. For example, generally, we use standard namespace called std. We write the syntax like:using namespace std;In the standard library, it contains common functionality you use in building your applications like containers, algorithms, etc. If names used by these were out in the open, for example, if they defined a queue class globally, you'd never be able to use the same name again without conflicts. So they created a namespace, std to contain this change.The using namespace statement just means that in the scope it is present, make ... Read More