Understanding how to retrieve the value count by comparing strings in JavaScript

Question

Understanding how to retrieve the value count by comparing strings in JavaScript

In my array object, I am comparing each string and incrementing the value if one letter does not match. If three characters match with the string, then I increase the count value; otherwise, it remains 0.

var obj = ["race", "sack", "grass", "brass", "beat", "pack", "cake"]

function getValue(obj) {
    var count = 0
    for (var i = 0; i <= obj.length; i++) {
      for (var j = 1; j <= obj.length; j++) {
        if (obj[i].split("") == obj[j].split("")) {
            count++;
          }
        }

      }
    }

Expected Output

race 1 
sack 2 // (pack, cake matches 3 letters with sack so 2) 
grass 1
brass 1
beat 0
pack 2
cake 3

javascript jquery arrays typescript object

Answer 1

Answer №1

function findMatchingStrings(str1, str2) {
  let count = 0;
  const obj = str2.split("");
  for(str of str1){
    let idx = obj.findIndex(s => s === str);
    if(idx >= 0){
      count++;
      obj.splice(idx, 1);
    }
  }
  return count;
}


var strings = ["race", "sack", "grass", "brass", "beat", "pack", "cake"]

const result = {}

for (var i = 0; i < strings.length; i++) {
    result[strings[i]] = 0
    for (var j = 0; j < strings.length; j++) {
        if (i != j) {
            matchingCount = findMatchingStrings(strings[i], strings[j])

            if (matchingCount === 3) {
                result[strings[i]]++
            } else {
                if (strings[i].length - matchingCount == 1) {
                    result[strings[i]]++
                }
            }
        }
    }
}

console.log(result)

Answer 2

function findMatchingStrings(str1, str2) {
  let count = 0;
  const obj = str2.split("");
  for(str of str1){
    let idx = obj.findIndex(s => s === str);
    if(idx >= 0){
      count++;
      obj.splice(idx, 1);
    }
  }
  return count;
}


var strings = ["race", "sack", "grass", "brass", "beat", "pack", "cake"]

const result = {}

for (var i = 0; i < strings.length; i++) {
    result[strings[i]] = 0
    for (var j = 0; j < strings.length; j++) {
        if (i != j) {
            matchingCount = findMatchingStrings(strings[i], strings[j])

            if (matchingCount === 3) {
                result[strings[i]]++
            } else {
                if (strings[i].length - matchingCount == 1) {
                    result[strings[i]]++
                }
            }
        }
    }
}

console.log(result)

Answer 3

Answer №2

To output results, you can create a new object and iterate through each element in the array. By comparing elements and replacing characters, check if at least three characters have been removed from one element to another, and increment the respective element by one.

const arr = ["race", "sack", "grass", "brass", "beat", "pack", "cake"];
const out = Object.fromEntries(arr.map(e => [e, 0]));
for(i in arr) {
  for(j in arr) {
    if(i == j) continue;
    if(arr[i].length !== arr[j].length) continue;
    const res = [...arr[i]].reduce((acc, e)=> acc.replace(e, ''), arr[j]);
    if(res.length <= arr[j].length - 3) {
      out[arr[i]] = out[arr[i]] + 1
    }
  }
}
console.log(out);

Answer 4

To output results, you can create a new object and iterate through each element in the array. By comparing elements and replacing characters, check if at least three characters have been removed from one element to another, and increment the respective element by one.

const arr = ["race", "sack", "grass", "brass", "beat", "pack", "cake"];
const out = Object.fromEntries(arr.map(e => [e, 0]));
for(i in arr) {
  for(j in arr) {
    if(i == j) continue;
    if(arr[i].length !== arr[j].length) continue;
    const res = [...arr[i]].reduce((acc, e)=> acc.replace(e, ''), arr[j]);
    if(res.length <= arr[j].length - 3) {
      out[arr[i]] = out[arr[i]] + 1
    }
  }
}
console.log(out);

Understanding how to retrieve the value count by comparing strings in JavaScript

Answer №1

Answer №2

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