[Quiz 4] JavaScript string

Which of the following is the correct statement for string declaration in JavaScript?

• Only A

• Only B

• Only C

• All are correct

Which of the following is the correct statement that finds the string length in JavaScript?

let a = 'hello';

• a.length();

• a.length;

• a.getLength();

• String.length(a);

Is the below JavaScript variables valid?

• valid, valid

• valid, invalid

• invalid, valid

• invalid, invalid

What will be the console output of the below JavaScript code?

• angoO

• Mang

• Mango

• Mango,

Which statement produces ", kiwi"?

• substr(str(9,12));

• str.subString(9,13);

• str.substr(9,4);

• subString(str(9,5));

Select the correct JavaScript code to replace the word "Maimi" with "California":

• A

• B

• C

• D

What is the output of the given snippet?

• Hello

• ,

• true

• false

Which string function is used to remove the whitespaces from both ends in the given JavaScript string?

• str.truncate();

• str.trim();

• str.slice();

• str.concat();

Which of the following code snippets correctly changes the string into uppercase in JavaScript?

newStr =

• str.changeToUpperCase();

• str.updateToUpperCase();

• str.toUpperCase();

• str.toUpperCaseArray();

What does the following code log?

• -1

• 6

• 7

• NaN