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

11)
Define Comparison Operators and its symbols ?

Comparison operators are used to compare numerical (numbers), string or Boolean values. Operators listed below :

  • == => Validates the condition whether two numbers or string values are equal
  • != => Validates the condition whether two numbers or string values are not equal
  • > => Validates the condition whether one number is greater than other
  • < => Validates the condition whether one number is less than other
  • >= => Compares the numbers and checks whether one numbers is greater than or equals to other
  • <= => Compares the numbers and checks whether one numbers is less than or equals to other
  • === => Used to compare and check whether two values are strictly equal
  • !== => Used to compare and check whether two values are strictly not equal
12)
Define Assignment Operators and its symbols ?

Assignment operators are use to assign a value to a variable. Operators listed below :

  • = => used to assign a value on the right sie to the variable of the left side of the operator
  • += => it adds the value on the right to the previous value of the variable on the left and assign the new value to the variable
  • -= => It subtracts the value on the right to the previous value of the variable on the left and assign the new value to the variable.
  • *= => It multiplies the operand on the right to the previous value of the variable on the left and assigns the new value to the variable.
  • /= => It divides the operand on the right to the previous value of the variable on the left and assigns the new value to the variable.
  • <<= => The operand on the left is shifted left by the value on the right.
  • >>= => A signed right shifted is performed on the left operand by the value on the right.
13)
Define If Statement ?

If statement is used to check or verify a condition and execute a set of statement only if the condition is true. This should be referred as a statement and not as a function.

14)
Define NestedIf Statement ?

Nested if statement is nothing but using an if statement inside another if statement. Nested if is used when we check a condition only when another condition is true.

15)
Define Switch Case Statement ?

Switch case is used to when a condition may have multiple results and a different set of operation is done on each result .