如何计算 Javascript 中数组内的字母或字符总数

Question

Part of a JavaScript program I am writing asks to count the total number of the letters from the array objects. So for example if I had an array like this.

["apple", "pear"] 

The total count of letters would be 9. I am not sure if their is a char count function in JavaScript and a lot of the examples I have seen on here only count the occurrences of individual letters. Any help with this would be appreciated.

Answer 1

You can do this by concatenating the array then getting the length of it. For example ["apple", "pear"] would become "applepear" then the length of that string which is 9 .

 let array = ["apple", "pear"]; let result = array.join("").length; console.log(result);