Two departments, one goal: our education team edits new Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) versions daily while IT staff upload them — 149 practice questions for the JavaScript-Developer-I日本語 exam, always current at TorrentExam.
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Browser and DOM Interaction | - Browser APIs (fetch, storage, timers) - DOM manipulation and traversal - Event handling and propagation |
| Topic 2: Testing and Debugging | - Debugging techniques and tools - Unit testing principles |
| Topic 3: Salesforce Platform Integration | - Security considerations in Salesforce JavaScript - Lightning Web Components (LWC) JavaScript usage - Calling Apex methods from JavaScript |
| Topic 4: JavaScript Language Fundamentals | - Functions, scope, and closures - ES6+ syntax and features - Data types, variables, and operators |
| Topic 5: Asynchronous JavaScript | - Promises and async/await - Error handling in async workflows - Event loop and concurrency model |
Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) Exam FAQ — Clear and Current
No formal prerequisites, but familiarity with JavaScript and Salesforce platform development is strongly recommended. Vendors revise eligibility rules periodically, so confirm the current requirements on the official page (official JavaScript-Developer-I日本語 exam page) before registering.
Delivery is instant — an automatic email within a minute of payment, unlimited devices, and 7*24 online service (replies within two hours) if anything's missing after 2 hours; check spam first. If you fail the corresponding JavaScript-Developer-I日本語 exam within 60 days of purchase, we refund all the cost you paid: send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam, processed within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Alternatively, exchange for two equal-value products free.
105 minutes for 60 questions. Train the pace in advance: timed practice sessions turn the exam clock from a threat into a habit.
Yes:
Official courses build the base; the 149 practice questions for the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) — every answer expert-verified — build the readiness.
The Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) blueprint spans 5 domains — including Testing and Debugging, Asynchronous JavaScript, Browser and DOM Interaction. Study in proportion to the weightings; the complete outline above details every subtopic.
Yes — free demo downloads let you tell whether the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) material suits you before purchasing. Purchases include 365 days of free updates, each new version emailed immediately; renew afterward at 50% off.
Through the vendor's official registration channels:
The Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) is delivered Online proctored or onsite testing via Kryterion Webassessor — choose the arrangement that fits you when booking.
USD 200 (may vary by region/tax) per attempt, 65% to pass. Retakes bill again at full price — prepare thoroughly with the 149 practice questions for the JavaScript-Developer-I日本語 exam at TorrentExam first.
The Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) is Salesforce's certification exam for JavaScript Developer I, at the Professional level. These certifications are valued precisely because they're demanding — passing one validates real capability. Related credentials include Salesforce Certified Platform Developer I, Salesforce Certified Platform App Builder, Salesforce Certified JavaScript Developer I.
Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) Sample Questions:
以下のコードが与えられた場合：
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();
10行目が実行されたとき、resultの値は何ですか？
- A. エラー: myFather.job は関数ではありません
- B. ジョン未定義
- C. ジョン・デベロッパー
- D. 未定義の開発者
Correct Answer: A 🗳️
Explanation: Only visible for TorrentExam members. You can sign-up / login (it's free).
以下のコードを参照してください。
01 let country = {
02 get capital() {
03 let city = Number( " London " );
04
05 return {
06 cityString: city.toString(),
07 }
08 }
09 }
開発者は country.capital.cityString を参照する際に、どのような値を期待できますか？
- A. undefined
- B. NaN
- C. ' London '
- D. An error
Correct Answer: B 🗳️
Explanation: Only visible for TorrentExam members. You can sign-up / login (it's free).
開発者は配列の要素の合計を計算する関数を作成する必要があるが、コードを実行するたびに「undefined」というエラーが発生する。開発者は、以下のコードに何が不足しているかを特定する必要がある。
01 const sumFunction = arr = > {
02 return arr.reduce((result, current) = > {
03 //
04 result += current;
05 //
06 }, 10);
07 };
どの行を置換すれば、コードが期待どおりに動作するようになりますか？
- A. 05 return result;
- B. 03 if(arr.length == 0) { return 0; }
- C. 02 arr.map((result, current) = > {
- D. 04 result = result + current;
Correct Answer: A 🗳️
Explanation: Only visible for TorrentExam members. You can sign-up / login (it's free).
開発者は、数値を渡すと次の値を返す FizzBuzz 関数を作成しました。
* 数字が3で割り切れる場合は「fizz」と表示されます。
* 数字が5で割り切れる場合は「ブザー」を鳴らします。
* 数字が3と5の両方で割り切れる場合は「fizzbuzz」と表示されます。
* 数値が3でも5でも割り切れない場合は、空の文字列「 」が表示されます。
fizzbuzz関数のシナリオを適切にテストするテストケースはどれですか？(2つ選択)
- A. let res = fizzbuzz(true);
console.assert(res === ' ' ); - B. let res = fizzbuzz(15);
console.assert(res === ' fizzbuzz ' ); - C. let res = fizzbuzz(5);
console.assert(res === ' fizz ' ); - D. let res = fizzbuzz(3);
console.assert(res === ' ' );
Correct Answer: A,B 🗳️
Explanation: Only visible for TorrentExam members. You can sign-up / login (it's free).
開発者がNode.jsを使用した新しいWebサーバーを作成します。サーバー機能の処理にイベントとコールバックを使用するサーバーライブラリをインポートします。サーバーライブラリはrequireでインポートされ、serverという名前の変数によってコード内で利用可能になります。開発者は、サーバーの起動中に発生するあらゆる問題をログに記録したいと考えています。
どのコードが起動時にイベントとともにエラーをログに記録しますか？
- A. server.catch((error) = > {
console.log( ' ERROR ' , error);
}); - B. try {
server.start();
} catch(error) {
console.log( ' ERROR ' , error);
} - C. server.on( ' error ' , (error) = > {
console.log( ' ERROR ' , error);
}); - D. server.error((error) = > {
console.log( ' ERROR ' , error);
});
Correct Answer: C 🗳️
Explanation: Only visible for TorrentExam members. You can sign-up / login (it's free).
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