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[Hardware] Exam JavaScript-Developer-I Price - Valid JavaScript-Developer-I Test Syllabus

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【Hardware】 Exam JavaScript-Developer-I Price - Valid JavaScript-Developer-I Test Syllabus

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q77-Q82):NEW QUESTION # 77
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
turn around 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?
  • A. DEBUG =true node server.js
  • B. NODE_DEBUG =true node server.js
  • C. DEBUG = http, https node server.js
  • D. NODE_DEBUG =http, https node server.js
Answer: A

NEW QUESTION # 78
A developer has two ways to write a function:
Option A:
function Monster() {
This.growl = () => {
Console.log ("Grr!");
}
}
Option B:
function Monster() {};
Monster.prototype.growl =() => {
console.log("Grr!");
}
After deciding on an option, the developer creates 1000 monster objects.
How many growl methods are created with Option A Option B?
  • A. 1 growl method is created regardless of which option is used.
  • B. 1000 growl methods are created regardless of which option is used.
  • C. 1000 growl method is created for Option A. 1 growl methods are created for Option B.
  • D. 1 growl method is created for Option A. 1000 growl methods are created for Option B.
Answer: C

NEW QUESTION # 79
Refer to the string below.
Const str='Salesforce';
Which two statements results in the word 'Sales'?
Answer:
Explanation:
See the Answer below in explanation:
Explanation
Str.substring(0,5);
Str.substr(0,5);

NEW QUESTION # 80
A developer has an ErrorHandler module that contains multiple functions.
What kind of export be leverages so that multiple functions can be used?
  • A. Named
  • B. Multi
  • C. Default
  • D. All
Answer: A

NEW QUESTION # 81
A developer is asked to fix some bugs reported by users. To do that, the developer adds a breakpoint for debugging.
Function Car (maxSpeed, color){
This.maxspeed =masSpeed;
This.color = color;
Let carSpeed = document.getElementById(' CarSpeed');
Debugger;
Let fourWheels =new Car (carSpeed.value, 'red');
When the code execution stops at the breakpoint on line 06, which two types of information are available in the browser console ?
Choose 2 answers:
  • A. A variable displaying the number of instances created for the Car Object.
  • B. The values of the carSpeed and fourWheels variables
  • C. The information stored in the window.localStorage property
  • D. The style, event listeners and other attributes applied to the carSpeed DOM element
Answer: C,D

NEW QUESTION # 82
......
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