Refer to the following code snippet and identify the use of the substring() and toLowerCase() methods. function pokerCard(cardSuit, cardRank) { … this.cardImage() = function() { var suitAbbr = this.suit.substring(0, 1).toLowerCase(); return suitAbbr + this.rankValue + ".p ng"; } }
A) To reset the text string in lowercase
B) To extract the last letter of the string in lowercase
C) To extract the first letter of the string in lowercase
D) To set the lowercase as default

Question

Quizplus · Accepted Answer

The substring() method is used to extract a portion of a string based on the specified indexes. In this code, the substring() method is used to extract the first character of the cardSuit string. The toLowerCase() method is used to convert the extracted character to lowercase before returning it. Therefore, the correct choice is C - to extract the first letter of the string in lowercase.

Refer to the Following Code Snippet and Identify the Use