Before Applying job posting in any websites or recruiting agencies or sending resumes to job recruiters or any other employment website you need to improve your skills on general knowledge, Aptitude, Puzzles, logical reasoning, general english, database, programming as per your job profile. Job recruiters or mostly preferring job candidates who are having more stuff in those categories mentioned above. So improving more skills on your job profile always boost up your career and your performance. Even hiring companies and job recruiters who are looking for many job posting websites actually they are looking and filtering on these activities. In these javascript section you need to update more questions to perform well in front of job recruiters and companies. javascript Interview questions are most important to score in interview, Update all questions to score well in all rounds in job interview.

Javascript interview questions and answers

what are all the Datatypes used in Javascript ?

Datatypes used in javascript are list below :

  • Numbers
  • Strings
  • Boolean
  • Null
what is operators ?

An operator is a symbol or sign used in javascript to identify a specific program.

How many types of operator are there in javascript and list them ?

There are four types of operators listed below :

  • Arithmetic Operator
  • Logical Operator
  • Conparison Operator
  • Assignment Operator
Define Arithmetic Operators and its symbols ?

They are operators or syntax used to do arithmetic or math operations like addition, subtraction, multiplication, division, increment, decrement, etc. Operators Listed below :

  • + => Used for addition of two numbers
  • - => Used for subtraction of two numbers
  • * => Used for multiplication of two numbers
  • / => Used for division of two numbers
  • % => Used to find the division remainder
  • ++ => Used to increment a value
  • -- => Used to decrement a value
Define Logical Operators and its symbols ?

Logical operators are used mainly for Boolean operations. Operators Listed below :

  • && => Used for logical "and" operation, condition
  • || => Used for logical "or" operation, condition
  • ! => Used for logical "not" operation, condition