JavaScript-Developer-I受験体験、JavaScript-Developer-I最新資料JavaScript-Developer-I試験の認証資格を取得したら、あなたは利益を得られます。あなたは試験に参加したいなら、我々のJavaScript-Developer-I問題集はあなたの最高の復習方法です。この問題集で、あなたは気楽でJavaScript-Developer-I試験に合格することができます。我々の資料があったら、あなたは試験の復習を心配する必要がありません。 Salesforce Certified JavaScript Developer I Exam 認定 JavaScript-Developer-I 試験問題 (Q47-Q52):質問 # 47
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.prototype.roar = ( ) =>( console.log('They're pretty good!'); };
B. leo.roar = () => { console.log('They're pretty good!'); );
C. Object.assign (leo. Tiger);
D. Object.assign (leo, tony);
正解：B、D
質問 # 48
Refer to the code below:
Let foodMenu1 = ['pizza', 'burger', 'French fries'];
Let finalMenu = foodMenu1;
finalMenu.push('Garlic bread');
What is the value of foodMenu1 after the code executes?
A. [ 'Garlic bread']
B. [ 'Garlic bread' , 'pizza','Burger', 'French fires' ]
C. [ 'pizza','Burger', 'French fires', 'Garlic bread']
D. [ 'pizza','Burger', 'French fires']
正解：D
質問 # 49
Refer to the code below:
01 const server = require('server');
02 /* Insert code here */
A developer imports a library that creates a web server. The imported library uses events and callbacks to start the servers Which code should be inserted at the line 03 to set up an event and start the web server ?
A. server()
B. serve(( port) => (
C. Server.start ();
D. server.on(' connect ' , ( port) => {
console.log('Listening on ' , port) ;})
E. console.log( 'Listening on ', port) ;
正解：D
質問 # 50
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 === 4) {
array.splice(i, 1);
}
}
What is the value of the array after the code executes?
A. [1, 2, 3, 4, 5, 4]
B. [1, 2, 3, 4, 4, 5, 4]
C. [1, 2, 3, 5]
D. [1, 2, 3, 4, 5, 4, 4]
正解：A
質問 # 51
Refer to the code below:
let productSKU = '8675309,;
A developer has a requirement to generate SKU numbers that are always 10 characters log, starting with 'sku', and padded with zeros.
Which statement assigned the value skuooooooooo86675309?
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