https://github.com/rolling-scopes-school/js-assignments/blob/master/README.md#user-content-how-to-im plement-assignments-using-tdd-fashion

Для примера:
/**
* Returns the length of given string.
*
* @param {string} value
* @return {number}
*
* @example
*   'aaaaa' => 5
*   'b'     => 1
*   ''      => 0
*/
function getStringLength(value) {
  var i = 0;
  while(value[i] !== undefined) {
    i++;
  }
  return i;
}

var a = getStringLength('aaaaa');
var b = getStringLength('1');
var c = getStringLength('');
console.log(a)
console.log(b)
console.log(c)



/**
* Removes a leading and trailing whitespace characters from string.
*
* @param {string} value
* @return {string}
*
* @example
*   '  Abracadabra'    => 'Abracadabra'
*   'cat'              => 'cat'
*   'tHello, World! ' => 'Hello, World!'
*/
function removeLeadingAndTrailingWhitespaces(str) {
return str.replace(/^s+|s+$/g, '');
}
console.log(removeLeadingAndTrailingWhitespaces('  Abracadabra'));
console.log(removeLeadingAndTrailingWhitespaces('cat'));
console.log(removeLeadingAndTrailingWhitespaces('tHello, World!'));

<a href="https://github.com/rolling-scopes-school/js-assignments/blob/master/README.md#user-content-how-to-im" rel="nofollow noopener noreferrer" target="_blank">https://github.com/rolling-scopes-school/js-assignments/blob/master/README.md#user-content-how-to-im</a> plement-assignments-using-tdd-fashion

Для примера:
/**
* Returns the length of given string.
*
* @param {string} value
* @return {number}
*
* @example
*   'aaaaa' =&gt; 5
*   'b'     =&gt; 1
*   ''      =&gt; 0
*/
function getStringLength(value) {
  var i = 0;
  while(value !== undefined) {
    i++;
  }
  return i;
}

var a = getStringLength('aaaaa');
var b = getStringLength('1');
var c = getStringLength('');
console.log(a)
console.log(b)
console.log(c)



/**
* Removes a leading and trailing whitespace characters from string.
*
* @param {string} value
* @return {string}
*
* @example
*   '  Abracadabra'    =&gt; 'Abracadabra'
*   'cat'              =&gt; 'cat'
*   'tHello, World! ' =&gt; 'Hello, World!'
*/
function removeLeadingAndTrailingWhitespaces(str) {
return str.replace(/^s+|s+$/g, '');
}
console.log(removeLeadingAndTrailingWhitespaces('  Abracadabra'));
console.log(removeLeadingAndTrailingWhitespaces('cat'));
console.log(removeLeadingAndTrailingWhitespaces('tHello, World!'));

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