73. Define event bubbling?
The ‘Navigator.appversion’ is used to find the name of the operating system in the client machine.
76. Explain the difference between “==” and “===”?
“==” checks only for equality in value whereas “===” is a stricter equality test and returns false if either the value or the type of the two variables are different.
77. What is the function of delete operator?
The functionality of delete operator is used to delete all variables and objects in a program but it cannot delete variables declared with VAR keyword.
Primitive types are number and Boolean data types. Reference types are more complex types like strings and dates.
The push method is used to add or append one or more elements to the end of an Array. Using this method, we can append multiple elements by passing multiple arguments