從Google Drive中免費下載最新的KaoGuTi JavaScript-Developer-I PDF版考試題庫：https://drive.google.com/open?id=1BlaPIgd_CqZU501xQ_CWkQUmbmCAJLsf
作為一名專業的IT人員，如何證明自己的能力，加強自己在公司的地位，獲得Salesforce JavaScript-Developer-I認證可以提高你的IT技能，以獲得更好的工作機會。快登錄KaoGuTi網站吧！這里有大量的學習資料試題和答案，是滿足嚴格質量標準的考試題庫，涵蓋所有的Salesforce JavaScript-Developer-I考試知識點。客戶成功購買我們的JavaScript-Developer-I題庫資料之后，都將享受一年的免費更新服務，一年之內，如果您購買的JavaScript-Developer-I學習資料更新了，我們將免費發送最新版本的到您的郵箱。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Variables, Types, and Collections | 23% | - Strings, numbers, and dates - Type coercion and conversion - JSON parsing and manipulation - Truthy and falsy evaluations - Primitive and complex data types - Arrays and collections - Variable declarations and initialization |
| Topic 2: Asynchronous Programming | 13% | - Event loop and execution flow - Callbacks - Async/Await syntax - Promises (creation, chaining, error handling) - Asynchronous patterns for business requirements |
| Topic 3: Server Side JavaScript | 8% | - Node.js fundamentals - CLI commands - Server-side JavaScript implementations - Core Node.js modules - Package management (npm) |
| Topic 4: Testing | 7% | - Test effectiveness evaluation - Test coverage and reliability - Writing and modifying unit tests - Unit testing concepts |
| Topic 5: Browser and Events | 17% | - Event propagation (bubbling and capturing) - DOM manipulation - Browser-specific APIs - Browser Developer Tools usage - Event handling and listeners - Interacting with forms and user input |
| Topic 6: Debugging and Error Handling | 7% | - Console methods for debugging - Breakpoints and code inspection - Custom error types - Error handling techniques (try/catch/finally) |
| Topic 7: Objects, Functions, and Classes | 25% | - Prototypal inheritance - Function declarations and expressions - Arrow functions - Object creation and manipulation - Execution flow and context - Modules and decorators - ES6 classes and inheritance - Variable scope and closures - Higher-order functions |
>> JavaScript-Developer-I認證考試 <<
您可以先在網上下載KaoGuTi為你免費提供的關於Salesforce JavaScript-Developer-I認證考試的練習題及答案作為嘗試，之後你會覺得KaoGuTi給你通過考試提供了一顆定心丸。選擇KaoGuTi為你提供的針對性培訓，你可以很輕鬆通過Salesforce JavaScript-Developer-I 認證考試。
問題 #52
Refer to the following array:
Let arr = [1, 2, 3, 4, 5];
Which three options result in x evaluating as (3, 4, 5)?
Choose 3 answers
答案：A,C,D
問題 #53
Refer to the code below:
Let str = 'javascript';
Str[0] = 'J';
Str[4] = 'S';
After changing the string index values, the value of str is 'javascript'. What is the reason
for this value:
答案：C
問題 #54
Given the code below:
Which method can be used to provide a visual representation of the list of users and to allow sorting by the name or email attribute?
答案：B
問題 #55
Refer to the code below:
Function Person(firstName, lastName, eyecolor) {
this.firstName =firstName;
this.lastName = lastName;
this.eyeColor = eyeColor;
}
Person.job = 'Developer';
const myFather = new Person('John', 'Doe');
console.log(myFather.job);
What is the output after the code executes?
答案：B
問題 #56
Given the code below:
const delay = async delay =>{
return new Promise((resolve,reject)=>{
console.log(1);
setTimeout(resolve,deleay);
});
};
const callDelay = async ()=>{
console.log(2);
const yup = await delay(1000);
console.log(3);
}
console.log(4);
callDelay();
console.log(5);
What is logged to the console?
答案：A
問題 #57
......
我們KaoGuTi Salesforce的JavaScript-Developer-I考試認證培訓資料可以實現你的夢想，因為它包含了一切需要通過的Salesforce的JavaScript-Developer-I考試認證，有了KaoGuTi，你們將風雨無阻，全身心投入應戰。有了我們KaoGuTi的提供的高品質高品質的培訓資料，保證你通過考試，給你準備一個光明的未來。
JavaScript-Developer-I權威認證: https://www.kaoguti.com/JavaScript-Developer-I_exam-pdf.html
BONUS!!! 免費下載KaoGuTi JavaScript-Developer-I考試題庫的完整版：https://drive.google.com/open?id=1BlaPIgd_CqZU501xQ_CWkQUmbmCAJLsf