The developer wants to test the array shown:
const arr = Array(5).fill(0)
Which two tests are the most accurate for this array ?
Choose 2 answers:

• A.console.assert(arr[0] === 0 && arr[ arr.length] === 0);
• B.console.assert (arr.length >0);
• C.arr.forEach(elem => console.assert(elem === 0)) ;
• D.console.assert( arr.length === 5 );

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A developer wants to leverage a module to print a price in pretty format, and has imported a method as shown below:
Import printPrice from '/path/PricePrettyPrint.js';
Based on the code, what must be true about the printPrice function of the PricePrettyPrint module for this import to work ?

• A.printPrice must be the default export
• B.printPrice must be an all export
• C.printPrice must be be a named export
• D.printPrice must be a multi exportc

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Refer to the code below:

Considering that JavaScript is single-threaded, what is the output of line 08 after the code executes?

• A.11
• B.12
• C.13
• D.10

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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?

• A.Replace line 02 with return arr.map(( result, current) => (
• B.Replace line 04 with result = result +current;
• C.Replace line 05 with return result;
• D.Replace line 03 with if(arr.length == 0 ) ( return 0; )

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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.slice(0, 5);
• B.Let arr2 = arr1;
• C.Let arr2 = arr1.sort();
• D.Let arr2 = Array.from(arr1);

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