Question

How to find highest frequency character in a string with Node.js

Answer 1

function get_highest_frequency_character(s) { 
    const TOTLAASCII = 256; 
    let arr = new Array(TOTLAASCII).fill(0);
    
    const len = s.length; 
    for (let i = 0; i < len; i++) {
        arr[s[i].charCodeAt(0)]++; 
    }
          
    let max = arr[0]; 
    let ch = ' '; 
    for (let i = 1; i < len; i++) { 
        if (max < arr[s[i].charCodeAt(0)]) { 
            max = arr[s[i].charCodeAt(0)]; 
            ch = s[i]; 
        } 
    } 
          
    return ch; 
} 
        
const s = "node.jsc++phpcpythonc#"; 
            
console.log("Highest frequency character: " + get_highest_frequency_character(s)); 
   
   
   
      
      
/*
run:
      
Highest frequency character: c
      
*/

 

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