Write a JavaScript program to create a new string adding "Py" in front of a given string. If the given string begins with "Py" then return the original string

برمجة جافاسكربت java script

2021-06-01
ahmadghneem

Write a JavaScript program to create a new string adding "Py" in front of a given string. If the given string begins with "Py" then return the original string.

الأجوبة

function string_check(str1) {
  if (str1 === null || str1 === undefined || str1.substring(0, 2) === 'Py') 
  {
    return str1;
  }
  return "Py"+str1;
}

console.log(string_check("Python"));
console.log(string_check("thon"));

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