<section id="description">
<p>Удалите все значения фальши из массива. Значения фальши в JavaScript - <code>false</code> , <code>null</code> , <code>0</code> , <code>""</code> , <code>undefined</code> и <code>NaN</code> . Подсказка: попробуйте преобразовать каждое значение в логическое. Не забудьте использовать <a href="https://www.freecodecamp.org/forum/t/how-to-get-help-when-you-are-stuck-coding/19514" target="_blank">Read-Search-Ask,</a> если вы застряли. Напишите свой собственный код.</p></section>

function bouncer(arr) {
  // Don't show a false ID to this bouncer.
  return arr;
}

bouncer([7, "ate", "", false, 9]);


index

Фальшивый вышибала

Falsy Bouncer

<code>bouncer([7, "ate", "", false, 9])</code> should return <code>[7, "ate", 9]</code>.

<code>bouncer(["a", "b", "c"])</code> should return <code>["a", "b", "c"]</code>.

<code>bouncer([false, null, 0, NaN, undefined, ""])</code> should return <code>[]</code>.

<code>bouncer([1, null, NaN, 2, undefined])</code> should return <code>[1, 2]</code>.

javascript-algorithms-and-data-structures

Basic Algorithm Scripting

function bouncer(arr) {
  // Don't show a false ID to this bouncer.
  return arr.filter(v => v);
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
  // Don't show a false ID to this bouncer.

  return arr.filter(Boolean);
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
  
  arr = arr.filter(function (elem){

    if (Boolean(elem)){return elem;}
  });
  return arr;
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
 return arr.filter(i => i);
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
  // Don't show a false ID to this bouncer.
  return arr.filter(elem => !!elem);
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
  // Don't show a false ID to this bouncer.
  return arr.filter(Boolean);
}

bouncer([7, "ate", "", false, 9]);


function bouncer(arr) {
  const arr2 = []
  arr.forEach(element => {
    if (Boolean(element) === true) arr2.push(element)
  });
  return arr2;
}


function bouncer(arr) {
  return arr.filter(Boolean);
}

bouncer([7, "ate", "", false, 9]); // returns [7, "ate", 9]
