Salesforce Certified JavaScript Developer I: JAVASCRIPT-DEVELOPER-I

Refer to the code below:

01 let car1 = new promise((_, reject) =>

02 setTimeout(reject, 2000, "Car 1 crashed in"));

03 let car2 = new Promise(resolve => setTimeout(resolve, 1500, "Car 2

completed"));

04 let car3 = new Promise(resolve => setTimeout (resolve, 3000, "Car 3

Completed"));

05 Promise.race([car1, car2, car3])

06 .then(value => (

07 let result = $(value) the race. `;

08 ))

09 .catch( arr => (

10 console.log("Race is cancelled.", err);

11 ));

What is the value of result when Promise.race executes?

A. Car 3 completed the race.

B. Car 1 crashed in the race.

C. Car 2 completed the race.

D. Race is cancelled.

Refer to the following code:

What is the output of line 11?

A. [1,2]

B. ["bar", "foo"]

C. ["foo:1", "bar:2"]

D. ["foo", "bar"]

Refer to the string below.

Const str='Salesforce';

Which two statementsresults in the word 'Sales'?

A. Str.substring(0,5);

B. Str.substr(0,5);

C. PlaceHolder

D. PlaceHolder