[2024年01月] 実際問題を使ってJavaScript-Developer-I無料問題集サンプルと問題と練習テストエンジン
合格させるSalesforce JavaScript-Developer-I試験問題でテスト復刻エンジンとPDF
Salesforce JavaScript-Developer-I 認定試験は、105分以内に完了する必要がある60個の多肢選択問題から構成されています。この試験は、JavaScriptの基礎、Apex、Visualforce、およびLightningコンポーネントなど、さまざまなトピックに焦点を当てています。認定を取得するには、合格点率が68％以上必要です。
質問 # 103
Refer to the following code:
Which two statement could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers
- A. leo.roar = () => { console.log('They\'re pretty good!'); );
- B. Object.assign (leo. Tiger);
- C. leo.prototype.roar = ( ) =>( console.log('They\'re pretty good!'); };
- D. Object.assign (leo, tony);
正解：A、D
質問 # 104
Refer to the following array:
Let arr1 = [ 1, 2, 3, 4, 5 ];
Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?
- A. Let arr2 = arr1.sort();
- B. Let arr2 = arr1.slice(0, 5);
- C. Let arr2 = arr1;
- D. Let arr2 = Array.from(arr1);
正解：B、D
質問 # 105
Which option is true about the strict mode in imported modules?
- A. You can only reference notStrict() functions from the imported module.
- B. Imported modules are in strict mode whether you declare them as such or not.
- C. Add the statement use non-strict, before any other statements in the module to enable not-strict mode.
- D. Add the statement use strict =false; before any other statements in the module to enable not- strict mode.
正解：A
質問 # 106
Given the code below:
What is logged to the console?
- A. 2 1 4 3 5
- B. 2 5 1 3 4
- C. 1 2 5 3 4
- D. 1 2 4 3 5
正解：B
質問 # 107
The developer has a function that prints "Hello" to an input name. To test this, thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".
What can the developer do to change the code to print "Hello World" ?
- A. Change line 5 to function world ( ) {
- B. Change line 2 to console.log('Hello' , name() );
- C. Change line 9 to sayHello(world) ();
- D. Change line 7 to ) () ;
正解：B
質問 # 108
Universal Container(UC) just launched a new landing page, but users complain that the
website is slow. A developer found some functions that cause this problem. To verify this, the
developer decides to do everything and log the time each of these three suspicious functions
consumes.
console.time('Performance');
maybeAHeavyFunction();
thisCouldTakeTooLong();
orMaybeThisOne();
console.endTime('Performance');
Which function can the developer use to obtain the time spent by every one of the three
functions?
- A. console.timeStamp()
- B. console.getTime()
- C. console.timeLog()
- D. console.trace()
正解：C
質問 # 109
developer removes the HTML class attribute from the checkout button, so now it is
simply:
<button>Checkout</button>.
There is a test to verify the existence of the checkout button, however it looks for a button with
class= "blue". The test fails because no such button is found.
Which type of test category describes this test?
- A. False negative
- B. True negative
- C. False positive
- D. True positive
正解：A
質問 # 110
Refer to HTML below:
<div id ="main">
<div id = " card-00">This card is smaller.</div>
<div id = "card-01">The width and height of this card is determined by its
contents.</div>
</div>
Which expression outputs the screen width of the element with the ID card-01?
- A. document.getElementById(' card-01 ').style.width
- B. document.getElementById(' card-01 ').getBoundingClientRest().width
- C. document.getElementById(' card-01 ').innerHTML.lenght*e
- D. document.getElementById(' card-01 ').width
正解：B
質問 # 111
Given the code below:
Which three code segments result in a correct conversion from number to string? Choose 3 answers
- A. let scrValue = String(numValue);
- B. let strValue = numValue. toString();
- C. let strValue = * * 4 numValue;
- D. let strValue = numValue.toText ();
- E. let strValue = (String)numValue;
正解：A、B、C
質問 # 112
Refer to the code below:
Considering the implementations of 'use strict' on line 04, which three statements describes the executes of the code? Choose 3 answers
- A. 'use strict' has an effect only on line 05.
- B. 'use strict , is hoisted, so it has an effect on all lines.
- C. Z is equal to 3,14.
- D. Line 05 throws an error.
- E. 'use strict' has an effect between line 04 and the end of the file.
正解：B、C、D
質問 # 113
Which two console logs outputs NaN ?
Choose 2 answers
- A. console.log(10/0);
- B. console.log(10/ Number('5'));
- C. console.log(10/ ''five);
- D. console.log(parseInt('two'));
正解：C、D
質問 # 114
Refer to the code snippet below:
Let array = [1, 2, 3, 4, 4, 5, 4, 4];
For (let i =0; i < array.length; i++)
if (array[i] === 4) {
array.splice(i, 1);
}
}
What is the value of array after the code executes?
- A. [1, 2, 3, 4, 4, 5, 4]
- B. [1, 2, 3, 4, 5, 4, 4]
- C. [1, 2, 3, 4, 5, 4]
- D. [1, 2, 3, 5]
正解：A
解説：
質問 # 115
Refer to the following array:
Let arr1 = [ 1, 2, 3, 4, 5 ];
Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?
- A. Let arr2 = arr1.sort();
- B. Let arr2 = arr1.slice(0, 5);
- C. Let arr2 = arr1;
- D. Let arr2 = Array.from(arr1);
正解：B、D
質問 # 116
Refer to the following object.
How can a developer access the fullName property for dog?
- A. Dog, function, fullName
- B. Dog, get, fullName
- C. Dog.fullName
- D. Dog.fullName ( )
正解：C
質問 # 117
Refer to the code below:
Which code executes syhello once, two minutes from now?
- A. delay (sayhello, 120000) ;
- B. SetTimeout (sayhello, 120000) ;
- C. SetInterval (sayhello, 120000) ;
- D. SetTimeout (sayhello( ), 120000) ;
正解：D
質問 # 118
Refer to the HTML below:
<p> The current status of an order: < span> id='' status '> In progress < /span> < /p> Which JavaScript Statement changes the text 'In Progress' to Completed'?
- A. Document, getElementById (status'') , value = completed' ;
- B. Document, getElementById (''# status''), innerHTML = 'Completed' ;
- C. Document, getElementById (''status''), innerHTML = 'Completed' ;
- D. Document, getElementById ('',status''), innerHTML = 'Completed' ;
正解：C
質問 # 119
Which three actions can be done using the JavaSript browser console?
Choose 3 answer
- A. View and change security cookies
- B. Display a report showing the performance of a page.
- C. View, change, and debug the JavaScript code of the page.
- D. Run code a that is not related to the page.
- E. View and change the DOM of the page.
正解：C、D、E
質問 # 120
A developer wants to create an object from a function in the browser using the code
below:
Function Monster() { this.name = 'hello' };
Const z = Monster();
What happens due to lack of the new keyword on line 02?
- A. The z variable is assigned the correct object but this.name remains undefined.
- B. Window.name is assigned to 'hello' and the variable z remains undefined.
- C. Window.m is assigned the correct object.
- D. The z variable is assigned the correct object.
正解：B
質問 # 121
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Salesforce JavaScript-Developer-I試験は、Salesforceプラットフォーム上でJavaScriptを使用してアプリケーションを開発する予定の方にとって必須の認定試験です。この試験に合格することで、安全でスケーラブルなアプリケーションを開発し、特定のビジネスニーズに合わせてカスタマイズする能力があることを示すことができます。この試験に合格することで、キャリアの見通しを向上させ、就職機会を増やし、Salesforce開発の強固な基盤を築くことができます。
Salesforce JavaScript-Developer-I認定試験は、Salesforceプラットフォームにカスタムアプリケーションを構築する専門知識を紹介する素晴らしい方法です。この認定は雇用主によって非常に高く評価されており、競争力のある雇用市場で際立っているのに役立ちます。この試験に合格することにより、Salesforce Technologiesを使用してカスタムソリューションを作成するスキルと、ビジネス要件を満たすスケーラブルで安全なアプリケーションを構築する能力を実証します。
あなたを合格させるJavaScript-Developer-Iお手軽に試験合格リアルJavaScript-Developer-I練習問題集で更新されたのは2024年01月03日：https://jp.fast2test.com/JavaScript-Developer-I-premium-file.html
2024年最新の実際に出ると確認されたSalesforce JavaScript-Developer-I無料試験問題：https://drive.google.com/open?id=1nI5PYWO13SLuAM_ySksqpg6qqtM4CltB