Salesforce JavaScript-Developer-I日本語 Value Pack
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- Exam Code: JavaScript-Developer-I日本語
- Exam Name: Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)
- Updated: Oct 09, 2026
- Q & A: 149 Questions and Answers
- PDF Version + PC Test Engine + Online Test Engine
- Value Pack Total: $139.98 $89.99
- Save 50%
Salesforce JavaScript-Developer-I日本語 dumps - Testing Engine
- Exam Code: JavaScript-Developer-I日本語
- Exam Name: Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)
- Updated: Oct 09, 2026
- Q & A: 149 Questions and Answers
- Software Price: $69.99
- Testing Engine
About Salesforce JavaScript-Developer-I日本語 Instant Exam Download
Earning the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) certification signals readiness to deal with current challenges, and ITExamDownload builds the path with a question bank designed to run ahead of the test, not chase it.
Salesforce JavaScript-Developer-I日本語 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-001 |
| Exam Price: | USD 200 (may vary by region/tax) |
| Certificate Validity Period: | 1 year (maintenance required via Salesforce certification maintenance modules) |
| Passing Score: | 65% |
| Exam Duration: | 105 minutes |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Related Certifications: | Salesforce Certified Platform App Builder Salesforce Certified Platform Developer I Salesforce Certified JavaScript Developer I |
| Exam Format: | Multiple Select, Multiple Choice |
| Recommended Training: | Salesforce Trailhead JavaScript Developer I Prep Salesforce Developer Learning Paths |
| Exam Registration: | Salesforce Certification Registration (Webassessor) Salesforce Credentials Page |
| Sample Questions: |  |
| Exam Way: | Online proctored or onsite testing via Kryterion Webassessor |
| Pre Condition: | No formal prerequisites, but familiarity with JavaScript and Salesforce platform development is strongly recommended. |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/javascriptdeveloper1 |
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: JavaScript Language Fundamentals | - Functions, scope, and closures - Data types, variables, and operators - ES6+ syntax and features |
| Topic 2: Asynchronous JavaScript | - Promises and async/await - Event loop and concurrency model - Error handling in async workflows |
| Topic 3: Salesforce Platform Integration | - Lightning Web Components (LWC) JavaScript usage - Security considerations in Salesforce JavaScript - Calling Apex methods from JavaScript |
| Topic 4: Browser and DOM Interaction | - Browser APIs (fetch, storage, timers) - DOM manipulation and traversal - Event handling and propagation |
| Topic 5: Testing and Debugging | - Debugging techniques and tools - Unit testing principles |
Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) Materials That Go Where You Go
- Testing and Debugging ()
- Browser and DOM Interaction ()
- Asynchronous JavaScript ()
Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) Sample Questions:
修正されたコード:
let a = " * " ;
let b = " ** " ;
// x = 3;
console.log(a);
コードを実行すると何が表示されますか？
- A. *
- B. 未定義
- C. ReferenceError: a が定義されていません
- D. null
Correct Answer: A 🗳️
Explanation: Only visible for ITExamDownload members. You can sign-up / login (it's free).
テストでは以下を検索します：
<button class="blue">チェックアウト</button>
しかし、実際のHTMLは次のとおりです。
<ボタン>チェックアウト</ボタン>
テストが失敗するのは、既に存在しないクラスを想定しているためです。
これはどのような種類のテスト結果ですか？
- A. 真陽性
- B. 真の陰性
- C. 偽陽性
- D. 偽陰性
Correct Answer: D 🗳️
Explanation: Only visible for ITExamDownload members. You can sign-up / login (it's free).
値:
true + 3 + ' 100 ' + null
- A. 104
- B. " 4100null "
- C. " 2200null "
- D. " 4100 "
Correct Answer: B 🗳️
Explanation: Only visible for ITExamDownload members. You can sign-up / login (it's free).
開発者は、複数の関数を含むモジュールを持っている。
複数の機能を利用できるようにするためには、どのようなエクスポート方式を活用すべきでしょうか？
- A. すべて
- B. デフォルト
- C. 名前を付けました
- D. マルチ
Correct Answer: C 🗳️
Explanation: Only visible for ITExamDownload members. You can sign-up / login (it's free).
通常の関数定義と比較して、太い矢印関数にはどのような2つの特徴がありますか？
- A. 関数本体に単一の式がある場合、その式が評価され、暗黙的に返されます。
- B. この関数は、囲んでいるスコープの this を使用します。
- C. この関数は parentThis という引数を受け取り、囲んでいる字句スコープを指定します。
- D. この関数は独自の this を生成するため、スコープを分離するのに役立ちます。
Correct Answer: A,B 🗳️
Explanation: Only visible for ITExamDownload members. You can sign-up / login (it's free).
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