We are required to write a JavaScript function that takes in a string that might contain some numbers embedded inside it.
The function should extract all the numbers from the string return the new number.
Note − If the string contains no numbers, the function should return 0.
Example
Following is the code −
const str = 'sfsd8fsdf6dsfsd8sdfs28fd0'; const pickNumbers = (str = '') => { let res = 0; for(let i = 0; i < str.length; i++){ const el = str[i]; if(+el){ res = (res * 10) + +el; }; }; return res; }; console.log(pickNumbers(str)); console.log(pickNumbers('this string contains no numbers'));
Output
Following is the output on console −
86828 0