Question 250430 in Javascript Question posted in
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Javascript – java script: replacing the dot symbol in the array

In the first line, the input is the line d. In the second line, a series of words separated by a dot is entered. You need to output these words by separating each word with a combination of d characters. (В первой строке на вход подается строка d. Во второй строке вводится ряд слов через точку. Вам нужно вывести эти слова, разделяя каждое слово сочетанием символов d.)
example:
Sample Input: d= /|
dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe
Sample Output:
dej/|fow/|orj/|jkk/|fgo/|pwk/|pkp/|lde/|efe

    let d=prompt();
    let b=prompt();
    let arr=b.split('');
    for(let i in arr) {
        if(i.indexOf('.') !== -1){
            arr = i.replace(i.indexOf('.'), d)
      }
    }
    arr = arr.join()
    console.log(arr)`

It doesn’t work!

Tags:

4

Answers


  1. 0

    Concatenate characters with replacing the dot:

    const d = "/|\";
const input = "dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe";

let result = '';
const arr = input.split('');
for(let i = 0; i<arr.length;i++){
  result += arr[i] === '.' ?  '/|\' : arr[i];
}

console.log(result);

    Array::reduce() version:

    const d = "/|\";
const input = "dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe";

const result = input.split('').reduce((r, c) => r += c === '.' ?  '/|\' : c, '');

console.log(result);

    A benchmark:

    Cycles: 1000000 / Chrome/117
-------------------------------------------------------
Alexander   142/min  1.0x  151  145  146  158  142  187
Roco        168/min  1.2x  193  181  168  176  197  186
-------------------------------------------------------
https://github.com/silentmantra/benchmark

    <script benchmark="1000000">

// @benchmark Roco
'dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe'.replace(/./g, '/|\')

// @benchmark Alexander
let output = '';
const arr = 'dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe'.split('');
for(let i = 0; i<arr.length;i++){
  output += arr[i] === '.' ?  '/|\' : arr[i];
}
output;
</script>
<script src="https://cdn.jsdelivr.net/gh/silentmantra/benchmark/loader.js"></script>
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  2. 0

    Escape the special characters (escape) and Regex’s . (any character) using backslash: \ .

    const d = "/|\";
const input = "dej.fow.orj.jkk.fgo.pwk.pkp.lde.efe";
const result = input.replace(/./g, d);
console.log(result)
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  3. 0

    Mr . has a blue house and a . car.

    let str = document.getElementById("demo").innerHTML;
    let res = str.replace(/./g, "d");

    OutPut:
    Mr d has a blue house and a d car.

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  4. 0

    It seems like you’re trying to replace the dots in the input string b with the character d. However, there are a few issues in your code. You can achieve this by using the split and join methods correctly. Here’s the corrected code:

    let d = prompt();
let b = prompt();
let arr = b.split('.'); // Split the input string by dots

// Join the array elements with the character 'd'
let result = arr.join(d);

console.log(result);

    With this code, it will correctly split the input string b by dots and then join the elements with the character d, giving you the desired output.

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