Salesforce Certified JavaScript Developer I Exam Questions
Salesforce Certified JavaScript Developer I (Page 6 )

A developer is required to write a function that calculates the sum of elements in an array but is getting undefined every time the code is executed. The developer needs to find what is missing in the code below.
Const sumFunction = arr => {
Return arr.reduce((result, current) => {
//
Result += current;
//
), 10);
);
Which option makes the code work as expected?

Given code below:
setTimeout (()=> (
console.log(1);
). 0);

console.log(2);
New Promise ((resolve, reject )) = > (
setTimeout(() => (
reject(console.log(3));
). 1000);
)).catch(() => (
console.log(4);
));
console.log(5);
What is logged to the console?

Which statement accurately describes the behaviour of the async/ await keyworks ?

A developer is debugging a web server that uses Node.js The server hits a runtimeerror every third request to an important endpoint on the web server.

The developer added a break point to the start script, that is at index.js at he root of the server's source code. The developer wants to make use of chrome DevTools to debug.
Which command can be run to access DevTools and make sure the breakdown is hit ?

Refer to the code below:
Async funct on functionUnderTest(isOK) {
If (isOK) return `OK';
Throw new Error(`not OK');
)
Which assertion accurately tests the above code?