P.S. Free & New JS-Dev-101 dumps are available on Google Drive shared by BraindumpsVCE: https://drive.google.com/open?id=1tvhwCs1WIQVFDhdmd1aUyVILbqBA52yZ
Once bit twice shy! Many candidates feel depressed since they failed before, and someone choose to delay exams, someone may choose to give up. Cheer up! Our latest Salesforce JS-Dev-101 exam review questions will be your best savior and help you out of failure experience. Yes. We are the best authorized legal company which offers Valid JS-Dev-101 Exam Review questions many years, we are entitled as the best high passing rate provider now.
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Variables, Types, and Collections | 23% | - Variable declaration (var, let, const, scoping, hoisting) - String manipulation and Date objects - JSON parsing and stringification - Type coercion and type conversion - Array manipulation (map, filter, reduce, forEach, find) |
| Topic 2: Objects, Functions, and Classes | 25% | - ES6 Classes, constructors, methods, and inheritance - Object creation, properties, and prototypal inheritance - Higher-order functions and closures - JavaScript modules (export, import) - Function declarations, expressions, and arrow functions |
| Topic 3: Debugging and Error Handling | 7% | - try-catch blocks - Logging strategies and debugging techniques |
| Topic 4: Asynchronous Programming | 13% | - Callback patterns - Promises and async/await - Event loop and asynchronous code execution |
| Topic 5: Server Side JavaScript | 8% | - Node.js applications - Salesforce API integration - Modules and file operations |
| Topic 6: Testing | 7% | - Automated testing strategies - Test-driven development principles - Unit testing with Jest |
| Topic 7: Browser and Events | 17% | - DOM manipulation - Event handling, propagation, bubbling, and capturing - Browser Developer Tools |
>> Exam Salesforce JS-Dev-101 Book <<
All these JS-Dev-101 exam dumps formats contain real, updated, and error-free Salesforce Certified JavaScript Developer - Multiple Choice (JS-Dev-101) exam questions that prepare you for the final JS-Dev-101 exam. To give you an idea about the top features of JS-Dev-101 Exam Dumps, a free demo download facility is being offered to Salesforce Certified JavaScript Developer - Multiple Choice candidates. This free JS-Dev-101 exam questions demo download facility is available in all three JS-Dev-101 exam dumps formats.
NEW QUESTION # 58
Refer to the following code:
01 function Tiger(){
02this.Type = 'Cat';
03 this.size = 'large';
04 }
05
06 let tony = new Tiger();
07 tony.roar = () =>{
08 console.log('They\'re great1');
09 };
10
11 function Lion(){
12 this.type = 'Cat';
13 this.size = 'large';
14 }
15
16 let leo = new Lion();
17 //Insertcode here
18 leo.roar();
Which two statements could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers.
Answer: A,C
NEW QUESTION # 59
Given the code below:
01 function Person() {
02 this.firstName = 'John';
03 }
04
05 Person.proto = {
06 job: x => 'Developer'
07 });
08
09 const myFather = new Person();
10 const result = myFather.firstName + ' ' + myFather.job();
What is the value of result when line 10 executes?
Answer: D
Explanation:
Person.proto is being set, but JavaScript uses Person.prototype for the prototype chain, not Person.proto.
Therefore, job is not on Person.prototype, and instances of Person do not have job via prototype.
myFather is created with new Person(), so:
myFather.firstName is 'John'.
myFather.job is undefined.
Attempting to call myFather.job() results in:
TypeError: myFather.job is not a function
So option A is correct.
NEW QUESTION # 60
A developer wants to advocate for a mature, well-supported web framework/library instead of a new one (Minimalist.js).
Which two should be recommended?
Answer: B,C
Explanation:
React and Vue are:
Mature front-end JavaScript frameworks/libraries.
Have large communities.
Are widely supported and used in production across industries.
Appropriate for building browser-based Single Page Applications.
Express and Koa are server-side frameworks, not front-end SPA frameworks.
The scenario describes building a browser SPA, so the correct seasoned options are React and Vue.
JavaScript Knowledge Reference (text-only)
React and Vue are client-side frameworks for SPA development.
Express and Koa are backend frameworks for Node.js.
NEW QUESTION # 61
Refer to the code below:
Considering that JavaScript is single-threaded, what is the output of line 08 after the code executes?
Answer: A
NEW QUESTION # 62
Given:
const str = 'Salesforce';
Which two statements result in 'Sales'?
Answer: B,C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge:
str = 'Salesforce'
Index positions:
S(0) a(1) l(2) e(3) s(4) f(5) o(6) r(7) c(8) e(9)
substring(start, end)
Start index inclusive, end index exclusive.
str.substring(0, 5) → characters at indices 0-4 → "Sales"
str.substring(1, 5) → indices 1-4 → "ales"
substr(start, length)
Start index, then number of characters.
str.substr(0, 5) → 5 characters starting at index 0 → "Sales"
str.substr(1, 5) → 5 characters from index 1 → "alesf"
So the expressions that return "Sales" are A and C.
________________________________________
NEW QUESTION # 63
......
It is a truism that an internationally recognized JS-Dev-101 certification can totally mean you have a good command of the knowledge in certain areas. If you are overwhelmed by workload heavily and cannot take a breath from it, why not choose our JS-Dev-101 preparation torrent? We are specialized in providing our customers with the most reliable and accurate exam materials and help them pass their exams by achieve their satisfied scores. With our JS-Dev-101 practice materials, your exam will be a piece of cake.
JS-Dev-101 VCE Exam Simulator: https://www.braindumpsvce.com/JS-Dev-101_exam-dumps-torrent.html
BTW, DOWNLOAD part of BraindumpsVCE JS-Dev-101 dumps from Cloud Storage: https://drive.google.com/open?id=1tvhwCs1WIQVFDhdmd1aUyVILbqBA52yZ