P.S.ShikenPASSがGoogle Driveで共有している無料の2026 Salesforce JS-Dev-101ダンプ：https://drive.google.com/open?id=1LOt2JOf8J8rjIu5ey6RLNTbUhTr-NNwJ
今はSalesforce JS-Dev-101試験に準備するために、分厚い本を購買しなくてあまりにも多くのお金をかかるトレーニング機構に参加する必要がありません。我々社のJS-Dev-101練習問題は試験に参加する圧力を減らすだけでなく、お金を無駄にする煩悩を解消できます。あなたは弊社の商品を使用した後、一回でSalesforce JS-Dev-101試験に合格できなかったら、弊社は全額返金することを承諾します。
| Section | Weight | Objectives |
|---|---|---|
| Objects, Functions, and Classes | 25% | - ES6 classes, inheritance, modules, decorators - Function types, scope, closures, arrow functions - Object creation, properties, prototypes |
| Server Side JavaScript | 8% | - Node.js fundamentals and core modules - Package management and CLI tools |
| Testing | 7% | - Test coverage and improvement - Unit test structure and effectiveness |
| Asynchronous Programming | 13% | - Callbacks, promises, async/await - Event loop and execution flow |
| Browser and Events | 17% | - DOM selection and manipulation - Event handling, propagation, listeners - Browser APIs and developer tools |
| Variables, Types, and Collections | 23% | - Variable declaration and scope - Strings, numbers, dates, arrays and methods - JSON parsing and manipulation - Data types, type coercion, truthy/falsy values |
| Debugging and Error Handling | 7% | - Console usage, breakpoints and debugging techniques - Error types and handling strategies |
準備の時間が限られているので、多くの受験者はあなたのペースを速めることができます。 JS-Dev-101の実践教材は、知識の理解の誤りを改善します。多くのお客様は、明らかな改善を得て、負荷を軽減しています。そして、JS-Dev-101試験準備により、成績を改善し、生活の状態を変え、キャリアの驚くべき変化を得ることができ、すべてが可能になります。それはすべて、JS-Dev-101学習の質問から始まります。
質問 # 28
A developer writes the code below to calculate the factorial of a given number function sum(number){ return number * sum(number-1);
}
sum(3);
what is the result of executing the code.
正解：D
質問 # 29
A developer has a web server running with Node.js. The command to start the web server is node server.js. The web server started having latency issues. Instead of a one second turnaround for web requests, the developer now sees a five second turnaround.
Which command can the web developer run to see what the module is doing during the latency period?
正解：B
質問 # 30
Given the JavaScript below:
function onLoad() {
console.log("Page has loaded!");
}
Where can the developer see the log statement after loading the page in the browser?
正解：B
解説：
console.log() in browser-side JavaScript writes output to the browser's JavaScript console, which is available in the browser's Developer Tools.
In a typical browser (Chrome, Firefox, Edge, etc.), you open DevTools and go to the Console tab.
Any console.log("Page has loaded!"); executed in page JavaScript will appear there.
Why A is correct:
The function onLoad is a client-side function (runs in the browser).
When it executes, the console.log call goes to the browser's JavaScript console, not the server.
Why the others are incorrect:
B . On the terminal console running the web server
That console shows logs from the server-side runtime (e.g., Node.js logs).
This code is clearly browser-side JavaScript (no Node.js or server context shown).
Therefore, the output does not appear in the terminal.
C . In the browser performance tools log
Performance tools (Timeline, Performance tab, etc.) show metrics about rendering, CPU time, network, etc., not generic console.log messages.
console.log messages appear in the Console tab, not in performance logs.
D . On the webpage console log
There is no built-in concept of a "webpage console log" UI rendered on the page itself by default.
Unless you explicitly code something to display logs in the DOM, console.log output is not visible on the page, only in Developer Tools.
Therefore, the correct place to see that log is:
Answe r: A
JavaScript knowledge / Study Guide references (concept names only, no links):
Browser Developer Tools - Console tab
console.log() in client-side JavaScript
Difference between client-side logs and server-side logs
質問 # 31
for (let number = 2; number <= 5; number += 1) {
// faster code statement here
}
Which statement meets the requirements to log an error when the Boolean statement evaluates to false?
正解：D
解説：
console.assert(condition, message?) logs an assertion error if condition is falsy.
To log an error when number + 2 === 0 is false, use:
console.assert(number + 2 === 0);
Other options are invalid or do not behave as described: console.error always logs, assert alone is not a built-in browser global, and console.classy doesn't exist.
質問 # 32
Refer to the code below:
const pi = 3.1415926;
What is the data type of pi?
正解：D
解説：
In JavaScript, there is only one numeric type for ordinary numbers: number.
JavaScript number is a double-precision 64-bit binary format (IEEE 754).
There is no separate float, double, or decimal type in core JavaScript.
So:
typeof pi === 'number';
Hence, the correct answer is:
A . Number
Options B, C, D are specific numeric types found in other languages (like C, Java, C#), not distinct types in JavaScript.
Study Guide Concepts:
JavaScript primitive types
typeof operator and number
Lack of separate float / double / decimal types in JS
質問 # 33
......
SalesforceのJS-Dev-101試験に受かることを通じて現在の激しい競争があるIT業種で昇進したくて、IT領域で専門的な技能を強化したいのなら、豊富なプロ知識と長年の努力が必要です。SalesforceのJS-Dev-101試験に受かるのはあなたが自分をIT業種にアピールする方法の一つです。でも、試験に合格するために大量な時間とエネルギーを費やすことはなく、ShikenPASSのSalesforceのJS-Dev-101試験トレーニング資料を選んだらいいです。ShikenPASSのトレーニング資料はIT認証試験に受かるために特別に研究されたものですから、この資料を手に入れたら難しいSalesforceのJS-Dev-101認定試験に気楽に合格することができるようになります。
JS-Dev-101関連受験参考書: https://www.shikenpass.com/JS-Dev-101-shiken.html
P.S.ShikenPASSがGoogle Driveで共有している無料の2026 Salesforce JS-Dev-101ダンプ：https://drive.google.com/open?id=1LOt2JOf8J8rjIu5ey6RLNTbUhTr-NNwJ