As we know that CHAR is used to store fixed length string and VARCHAR is used to store variable length strings. Hence we can store a fixed length as well as variable length string in the same table by declaring a column as CHAR and other as VARCHAR.Examplemysql> Create Table ... Read More

The #define creates a macro, which is the association of an identifier or parameterized identifier with a token string. After the macro is defined, the compiler can substitute the token string for each occurrence of the identifier in the source file.#define identifier token-stringThis is how the preprocessor is used. The ... Read More

You can use PHP array in JavaScript. It works for the single as well as the multidimensional array. Use the json_encode() method to achieve this.Let’s say Our PHP array is −$myArr = array('Amit', 'amit@example.com');Converting PHP array into JavaScript. var arr = ; Now, let’s finally learn how to access it ... Read More

There are many sites which are good resource for java interview questions-answers. Following is the list of most popular websites.Tutorialspoint www.tutorialspoint.comStackOverflow www.stackoverflow.comDZone www.dzone.comWikipedia www.wikipedia.orgIBM Developer Works www.ibm.com/developerworks/java/TechGig www.techgig.comGitHub www.github.comJava documentation docs.oracle.com/javase/Coursera www.coursera.org/JavaWorld www.javaworld.com/Read More

To convert a string with Scientific Notation, use the Number function. Pass the value to this function.ExampleYou can try to run the following code to convert a string to correct number format −Live Demo                    document.write("String with Scientific Notation converted ... Read More

To get dates in JavaScript, use the getTime() method. Forgetting the difference between two dates, calculate the difference between date and time.ExampleYou can try to run the following code to learn how to calculate a difference between two dates −Live Demo               ... Read More

A constructor is a function that creates and initializes an object. JavaScript provides a special constructor function called Object() to build the object. The return value of the Object() constructor is assigned to a variable.The variable contains a reference to the new object. The properties assigned to the object are ... Read More

To add a video in an HTML page, use the element. It specifies a standard way to embed a video in HTML. Just keep in mind to add height and width to the video. Use the source element to add the source of the video, with the src attribute ... Read More

To set the header of the Bootstrap modal, use the .modal-header class.You can try to run the following code to implement the modal-header class −ExampleLive Demo           Bootstrap Example                           ... Read More

Use the .modal-dialog class in Bootstrap to set the width and margin of the modal.You can try to run the following code to implement .modal-dialog class −ExampleLive Demo           Bootstrap Example                       ... Read More