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Counting number of words in a sentence in JavaScript
We are required to write a JavaScript function that takes in a string. Our function is supposed to count the number of alphabets (uppercase or lowercase) in the array.
For example − If the input string is −
const str = 'this is a string!';
Then the output should be −
13
Example
The code for this will be −
const str = 'this is a string!'; const isAlpha = char => { const legend = 'abcdefghijklmnopqrstuvwxyz'; return legend.includes(char); }; const countAlphabets = (str = '') => { let count = 0; for(let i = 0; i < str.length; i++){ if(!isAlpha(str[i])){ continue; }; count++; }; return count; }; console.log(countAlphabets(str));
Output
And the output in the console will be −
13
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