Combining string values by utilizing functions and loops and saving them into an array

Question

Combining string values by utilizing functions and loops and saving them into an array

Looking to split a string of numbers into different variables within an array. The first variable needs to be 3 characters long, the six in the middle should be 7 characters long, and the last one should have a length of 3. Any suggestions on how I can achieve this using functions and loops?

javascript arrays string loops substring

Answer 1

Answer №1

We have the following code snippet that demonstrates a way to achieve our goal:

 
let str = '000111111122222223333333444444455555556666666mmmm';

// Setting up the lengths we are working with
let lengths = [3,7,7,7,7,7,7,3];

let index = 0;

let result = lengths.reduce((acc,n) => {
    acc.push(str.slice(index, index += n));
    return acc;
} , [])

console.log(result);

Answer 2

We have the following code snippet that demonstrates a way to achieve our goal:

 
let str = '000111111122222223333333444444455555556666666mmmm';

// Setting up the lengths we are working with
let lengths = [3,7,7,7,7,7,7,3];

let index = 0;

let result = lengths.reduce((acc,n) => {
    acc.push(str.slice(index, index += n));
    return acc;
} , [])

console.log(result);

Answer 3

Answer №2

One way to approach this problem is by breaking down the string into substrings.

let text = '000111111122222223333333444444455555556666666mmmm',
    lengths = [3, 7, 7, 7, 7, 7, 7, 3],
    result = lengths.map((i => l => text.slice(i, i += l))(0));

console.log(result);

Answer 4

One way to approach this problem is by breaking down the string into substrings.

let text = '000111111122222223333333444444455555556666666mmmm',
    lengths = [3, 7, 7, 7, 7, 7, 7, 3],
    result = lengths.map((i => l => text.slice(i, i += l))(0));

console.log(result);

Answer 5

Answer №3

Below is a simple approach to achieve the desired outcome:

const arrayElement = document.getElementById('arrayElement');
const variableElement = document.getElementById('variableElement');
const targetString = "122333444455555666666";
const dataSizes = [1, 2, 3, 4, 5, 6];
let result = [];
let position = 0;
dataSizes.forEach( (size) => {
    result.push(targetString.substr(position, size));
    position += size;
});
arrayElement.textContent = result.toString();
const [one, two, three, four, five, six] = result;
variableElement.textContent = `${one}-${two}-${three}-${four}-${five}-${six}`;

Answer 6

Below is a simple approach to achieve the desired outcome:

const arrayElement = document.getElementById('arrayElement');
const variableElement = document.getElementById('variableElement');
const targetString = "122333444455555666666";
const dataSizes = [1, 2, 3, 4, 5, 6];
let result = [];
let position = 0;
dataSizes.forEach( (size) => {
    result.push(targetString.substr(position, size));
    position += size;
});
arrayElement.textContent = result.toString();
const [one, two, three, four, five, six] = result;
variableElement.textContent = `${one}-${two}-${three}-${four}-${five}-${six}`;

Answer 7

Answer №4

To accomplish this task in a simple manner, you can store the desired substring lengths in an object and then extract those substrings from a given string:

let str = "abcdefghijklmnopqrstu";
let subStringLengthMap = {a: 3, b: 7, c: 7 , d: 3};

//creating a pure function
var getStrings = function(str, subStringLengthMap){
  let result = [];
  Object.keys(subStringLengthMap).forEach(function(key){
    let temp = str.slice(0, subStringLengthMap[key]);
    result.push(temp);
    str = str.replace(temp,'');
  })

  return result;
}

//invoke the function
console.log(getStrings(str, subStringLengthMap))

Answer 8

To accomplish this task in a simple manner, you can store the desired substring lengths in an object and then extract those substrings from a given string:

let str = "abcdefghijklmnopqrstu";
let subStringLengthMap = {a: 3, b: 7, c: 7 , d: 3};

//creating a pure function
var getStrings = function(str, subStringLengthMap){
  let result = [];
  Object.keys(subStringLengthMap).forEach(function(key){
    let temp = str.slice(0, subStringLengthMap[key]);
    result.push(temp);
    str = str.replace(temp,'');
  })

  return result;
}

//invoke the function
console.log(getStrings(str, subStringLengthMap))

Combining string values by utilizing functions and loops and saving them into an array

Answer №1

Answer №2

Answer №3

Answer №4

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