Question

What does the subexpression /java(script)?/ result in? (a) It matches “java” followed by the optional “script” (b) It matches “java” followed by any number of “script” (c) It matches “java” followed by a minimum of one “script” (d) It matches “java” followed by a single “script” I have been asked this question during an online exam. This interesting question is from Pattern Matching and Regular Expressions topic in portion Classes and Modules in JavaScript of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Right choice is (a) It matches “java” followed by the optional “script” For explanation: paranthesis () check for the optional presence of the argument in the string. subexpression /java(script)?/ matches “java” followed by the optional “script”.