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JSE-40-01 Practice Test
Rating: 4.6 out of 5(3 ratings)
27 students

JSE-40-01 Practice Test

JSE - Certified Entry-Level Javascript Programmer
Last updated 10/2024
English

What you'll learn

  • JSE - Certified Entry-Level JavaScript Programmer
  • JSE-40-01
  • JavaScript Certification
  • Practice test

Included in This Course

164 questions
  • Basics of JavaScript and Computer Programming18 questions
  • Variables, Data Types, and Type Casting48 questions
  • Operators and User Interaction25 questions
  • Control Flow – Conditional Execution and Loops28 questions
  • Functions24 questions
  • Errors, exceptions, debugging, and troubleshooting21 questions

Description

JSE: Certified Entry-Level JavaScript Programmer [JSE-40-01] is a comprehensive mock exam that emphasizes using the JSE-40-01 Syllabus as a guide for question topics. The audience should be at least a beginner JavaScript programmer or have a good grasp of programming because this is not a tutorial. All questions are tested and have undergone quality control.

All questions are based on individual topics and all topics have been covered. Some of the topics may not be thoroughly covered, but each and every topic in the syllabus has a corresponding question with sufficient representation.

Section 1: Basics of JavaScript and Computer Programming (8%)

JSE-40-01 1.1 – Understand fundamental terms and definitions

  • interpreting and the interpreter

  • compilation and the compiler

  • client-side vs. server-side programming

JSE-40-01 1.2 – Set up the programming environment

  • basic development tools

  • online vs. local development environment (code editor, interpreter, debugger)

JSE-40-01 – 1.3 Explain client-side execution of JavaScript code

  • HTML fundamentals

  • embedding JavaScript code

  • executing code directly in the console

Section 2: Variables, Data Types, and Type Casting (20%)

JSE-40-01 2.1 – Use variables effectively

  • naming, declaring and initializing variables

  • changing values assigned to variables

  • constants

  • scope (blocks, shadowing, hoisting)

JSE-40-01 2.2 – Define, identify, and use primitive data types in code: boolean, number, bigint, undefined, null

  • the number range and its formats

  • the bigint range

  • boolean values

  • empty and unknown values (null or undefined)

JSE-40-01 2.3 – Define, identify, and use primitive data types in code: string

  • string literals – single and double quotes

  • the escape character

  • string interpolation

  • basic properties and methods: length, charAt, slice, split

JSE-40-01 2.4 – Perform type-casting operations

  • primitive construction functions: String, Number, BigInt, Boolean

  • primitive conversions

  • implicit conversions

JSE-40-01 2.5 – Define, identify, and use complex data types in code: Object

  • object as a record

  • object literals

  • getting and setting properties

JSE-40-01 2.6 – Define, identify, and use complex data types in code: Array

  • array as an example of a complex data type

  • basic properties and methods of arrays: length, indexOf, push, unshift, pop, shift, reverse, slice, concat

Section 3: Operators and User Interaction (18%)

JSE-40-01 3.1 – Recognize and proficiently utilize assignment, arithmetic, and string operators

  • definition of operators

  • assignment operators

  • arithmetic operators

  • compound assignment operators

JSE-40-01 3.2 – Identify and proficiently use logical and comparison operators

  • logical operators

  • compound assignment operators

  • comparison operators

JSE-40-01 3.3 – Recognize and effectively use the ternary and other JavaScript operators

  • ternary (conditional) operator

  • other operators: typeof, instanceof, and delete

JSE-40-01 3.4 – Understand and implement operator precedence

  • precedence and associativity of basic operators

  • using brackets to force a specific order of operations (grouping)

JSE-40-01 3.5 – Implement the mechanism for interacting with the user

  • dialog boxes: alert, confirm, prompt

  • actions based on user decisions

Section 4: Control Flow – Conditional Execution and Loops (21%)

JSE-40-01 4.1 – Implement the decision-making mechanism and organize the control flow with the if instruction

  • conditional statements: if, if-else

  • multiple conditional statements

  • nesting conditional statements

JSE-40-01 4.2 – Implement the decision-making mechanism and organize the control flow with the switch instruction

  • conditional statement: switch-case

JSE-40-01 4.3 – Implement the decision-making mechanism and organize the control flow with the do-while and while loops, and the break and continue instructions

  • repeating a code fragment in a loop

  • iterations

  • conditions that (don’t) depend on the number of iterations

  • basic statements related to loops: while, do … while, break, case

JSE-40-01 4.4 – Implement the decision-making mechanism and organize the control flow with the for statement

  • repeating a code fragment using the for statement

JSE-40-01 4.5 – Implement the decision-making mechanism and organize the control flow with the for-in statement

  • using the for ... in statement for enumerating object keys

JSE-40-01 4.6 – Implement the decision-making mechanism and organize the control flow with the for-of statement

  • using the for ... of statement for traversing arrays

Section 5: Functions (21%)

JSE-40-01 5.1 – Organize and decompose the code using functions

  • declaring, calling, and passing arguments

  • returning function results

JSE-40-01 5.2 – Organize and implement interactions between the function and its environment

  • parameters

  • local variables

  • shadowing

JSE-40-01 5.3 – Apply function expressions and functions as first-class members in code

  • storing a function in a variable

  • passing a function as a parameter

  • named and anonymous function expressions

JSE-40-01 5.4 – Understand and implement the concept of recursion

  • using recursion to solve simple computational problems

JSE-40-01 5.5 – Explain and implement callback functions

  • synchronous callbacks

  • asynchronous callbacks

  • setTimeout, setInterval

JSE-40-01 5.6 – Explain and implement arrow functions

  • notation of function expressions in the arrow form

  • passing arguments

  • shortened form for a function body with one statement

Section 6: Errors, exceptions, debugging, and troubleshooting (12%)

JSE-40-01 6.1 – Classify and distinguish between different programming errors

  • error classification: syntax, semantics, and logical errors

  • runtime errors

JSE-40-01 6.2 – Compare and contrast different JavaScript errors and exceptions

  • basic types of JavaScript errors: Syntax Error, ReferenceError, TypeError, RangeError

JSE-40-01 6.3 – Understand, examine, and design an exception-handling mechanism in JavaScript

  • handling: try ... catch ... finally

  • throwing custom exceptions: throw

JSE-40-01 6.4 – Use different debugging and troubleshooting techniques

  • step-by-step execution

  • viewing and modifying variables

  • measuring code execution time

The questions in the practice tests are much more difficult than those included in the JSE – Certified Entry-Level JavaScript Programmer Certification. I recommend doing hands-on testing to verify the validity of the answers and emphasizing the importance of coding different permutations and combinations of the given examples.

All questions are self-explanatory and it will be easier to understand if the code is run on an Online SpiderMonkey IDE or the user’s preferred JavaScript IDE.

Who this course is for:

  • Students who wish to be a Certified Entry-Level JavaScript Programmer