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Get the character count of the characters present in the string https://jsbin.com/nuraxun
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| // This code is much faster than using a regex for checking if a value is alphanumeric | |
| function isAlphaNumeric(char) { | |
| code = char.charCodeAt(0); | |
| if (!(code > 47 && code < 58) && // numeric (0-9) | |
| !(code > 64 && code < 91) && // upper alpha (A-Z) | |
| !(code > 96 && code < 123)) { // lower alpha (a-z) | |
| return false; | |
| } | |
| return true; | |
| }; | |
| // Get the character count of the characters present in the string | |
| function charCount(str) { | |
| const result = {}; | |
| for(let char of str) { | |
| if(isAlphaNumeric(char)) { | |
| const charLower = char.toLowerCase(); | |
| result[charLower] = (result[charLower] || 0) + 1; | |
| } | |
| } | |
| return result; | |
| } | |
| console.log(charCount('This is a sentence')); | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">// This code is much faster than using a regex for checking if a value is alphanumeric | |
| function isAlphaNumeric(char) { | |
| code = char.charCodeAt(0); | |
| if (!(code > 47 && code < 58) && // numeric (0-9) | |
| !(code > 64 && code < 91) && // upper alpha (A-Z) | |
| !(code > 96 && code < 123)) { // lower alpha (a-z) | |
| return false; | |
| } | |
| return true; | |
| }; | |
| // Get the character count of the characters present in the string | |
| function charCount(str) { | |
| const result = {}; | |
| const strLower = str.toLowerCase(); | |
| for(let char of strLower) { | |
| if(isAlphaNumeric(char)) { | |
| result[char] = (result[char] + 1) || 1; | |
| } | |
| } | |
| return result; | |
| } | |
| console.log(charCount('This is a sentence'));</script></body> | |
| </html> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // This code is much faster than using a regex for checking if a value is alphanumeric | |
| function isAlphaNumeric(char) { | |
| code = char.charCodeAt(0); | |
| if (!(code > 47 && code < 58) && // numeric (0-9) | |
| !(code > 64 && code < 91) && // upper alpha (A-Z) | |
| !(code > 96 && code < 123)) { // lower alpha (a-z) | |
| return false; | |
| } | |
| return true; | |
| }; | |
| // Get the character count of the characters present in the string | |
| function charCount(str) { | |
| const result = {}; | |
| for(let char of str) { | |
| if(isAlphaNumeric(char)) { | |
| const charLower = char.toLowerCase(); | |
| result[charLower] = (result[charLower] || 0) + 1; | |
| } | |
| } | |
| return result; | |
| } | |
| console.log(charCount('This is a sentence')); |
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