Computer Science and Engineering › Javascript Data Types MCQ › Question #4911
Single Choice Easy

QWhat does the following function do in JavaScript? 
function toUpperCase(str) {
return str.toUpperCase();
}

ID: #4911 Javascript Data Types MCQ 296 views
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#4911Q ID
EasyDifficulty
Javascript Data Types MCQTopic
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  • A calculates the area of a circle ✔ ✖
  • B converts a string to uppercase ✔ ✖
  • C checks if a string is a palindrome ✔ ✖
  • D sorts an array in ascending order ✔ ✖
Correct Answer

Explanation

This function takes in a single argument, str, and uses the toUpperCase() method to convert the string to uppercase.

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