JavaScript-Developer-I Exam Question 126

A developer is debugging a web server that uses Node.js The server hits a runtimeerror
every third request to an important endpoint on the web server.
The developer added a break point to the start script, that is at index.js at he root of the
server's source code. The developer wants to make use of chrome DevTools to debug.
Which command can be run to access DevTools and make sure the breakdown is hit ?
  • JavaScript-Developer-I Exam Question 127

    Refer to the following array:
    Let arr1 = [1, 2, 3, 4, 5];
    Which two lines of codes result in a second array, arr2, being created such that arr2 is not a reference to arr1? Choose 2 answers
  • JavaScript-Developer-I Exam Question 128

    Refer to the following code:
  • JavaScript-Developer-I Exam Question 129

    Given the expressions var1 and var2, what are two valid ways to return the concatenation of the two expressions and ensure it is string? Choose 2 answers
  • JavaScript-Developer-I Exam Question 130

    Refer to the following code:
    Let sampletext = 'The quick brown fox Jumps';
    A developer need to determine if a certain substring is part of a string.
    Which three expressions return true for the give substring? Choose 3 answers