Question

How to divide a string into N equal parts with JavaScript

Answer 1

function DivideStringIntoEqualParts(str, parts) {
    const length = str.length;

    if (length % parts != 0) {
        console.log("No equal parts");
        return null;
    }
    
    let j = 0;
    const part_size = parseInt(length / parts);
    let parts_arr = Array(parts).fill(null);
        
    for (let i = 0; i < length; i = i + part_size) {
        parts_arr[j] = str.substring(i, i + part_size);
        j++;
    }
    return parts_arr;
}
        

const str = "javascript c++ python php c#";
const parts = 4;

const parts_arr = DivideStringIntoEqualParts(str, parts);
  
if (parts_arr != null) {      
    for (let i = 0; i < parts_arr.length; i++) {
        console.log(parts_arr[i]);
    }
}




/*
run:

"javascr"
"ipt c++"
" python"
" php c#"

*/

 

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Answer 2

function DivideStringIntoEqualParts(str, parts) {
    const length = str.length;

    if (length % parts != 0) {
        console.log("No equal parts");
        return null;
    }
    
    const part_size = parseInt(length / parts);
    let parts_arr = Array(parts).fill(null);
    
    parts_arr = str.match(new RegExp('.{1,' + part_size + '}', 'g'));
        
    return parts_arr;
}
        

const str = "javascript c++ python php c#";
const parts = 4;

const parts_arr = DivideStringIntoEqualParts(str, parts);
  
if (parts_arr != null) {      
    for (let i = 0; i < parts_arr.length; i++) {
        console.log(parts_arr[i]);
    }
}




/*
run:

"javascr"
"ipt c++"
" python"
" php c#"

*/

 

70+ SQL courses for beginners and professionals