Free Salesforce JavaScript-Developer-I Exam Dumps Questions & Answers

Refer to the HTML below:
< div id= " main " >
< ul >
< li > Leo < /li >
< li > Tony < /li >
< li > Tiger < /li >
< /ul >
< /div >
Which JavaScript statement results in changing " Leo " to " The Lion " ?

• A.document.querySelector( ' #main li:nth-child(1) ' ).innerHTML = ' The Lion ' ;
• B.document.querySelectorAll( ' #main li,Leo ' ).innerHTML = ' The Lion ' ;
• C.document.querySelector( ' #main li:second-child ' ).innerHTML = ' The Lion ' ;
• D.document.querySelectorAll( ' #main #Leo ' ).innerHTML = ' The Lion ' ;

A developer removes the HTML class attribute from the checkout button, so now it is simply:
< button > Checkout < /button >
There is a test to verify the existence of the checkout button, however it looks for a button with class= " blue "
. The test fails because no such button is found.
Which type of test category describes this test?

• A.True negative
• B.False positive
• C.True positive
• D.False negative

Why does second have access to variable a?

• A.Hoisting
• B.Inner function ' s scope
• C.Prototype Chain
• D.Outer function ' s scope

Refer to the code below:
flag();
function flag() {
console.log( ' flag ' );
}
const anotherFlag = () = > {
console.log( ' another flag ' );
}
anotherFlag();
What is result of the code block?

• A.An error is thrown.
• B.The console logs ' flag ' and ' another flag ' .
• C.The console logs ' flag ' and then an error is thrown.
• D.The console logs only ' flag ' .

Refer to the code declarations below:
let str1 = ' Java ' ;
let str2 = ' Script ' ;
Which three expressions return the string JavaScript?

• A.const({str1, str2});
• B.str1.join(str2);
• C.str1.concat(str2);
• D.str1 + str2;
• E.`${str1}${str2}`