To find the data type of its operand, such as whether a variable is string, numeric, or even undefined in […]

In JavaScirpt we can declare the variable using the reserved word var. The value of this variable can be any […]

JavaScript is the scripting language supported by most of the browsers and is used to add functionality, validate forms and […]

If we want to confirm an action from user, we need to use javascript confirm() method. The javascript confirm() method […]

If we want to get the length of the string in javascript, we need to use javascript string length proprty. […]

If any error in the javascript code then we need to use error handling mechanism. Error is handled in javscript […]

If we want to execute a javascript function when key is pressed from the keyboard on the html element, we […]

If we want to execute a javascript function when user double click of an element, we need to use javascript […]

If we want to execute a javascript function when user move mouse pointer out of the element, we need to […]

If we want to execute a javascript function when user mouse over an element, we need to use javascript onmouseover […]