freeCodeCamp/curriculum/challenges/spanish/02-javascript-algorithms-an.../basic-algorithm-scripting/falsy-bouncer.spanish.md

2.2 KiB

id title isRequired challengeType videoUrl localeTitle
adf08ec01beb4f99fc7a68f2 Falsy Bouncer true 5 Falsy Bouncer

Description

Eliminar todos los valores falsos de una matriz. Los valores de false en JavaScript son false , null , 0 , "" , undefined y NaN . Sugerencia: intente convertir cada valor a un booleano. Recuerda usar Read-Search-Ask si te atascas. Escribe tu propio código.

Instructions

Tests

tests:
  - text: '<code>bouncer([7, &quot;ate&quot;, &quot;&quot;, false, 9])</code> debe devolver <code>[7, &quot;ate&quot;, 9]</code> .'
    testString: 'assert.deepEqual(bouncer([7, "ate", "", false, 9]), [7, "ate", 9], "<code>bouncer([7, "ate", "", false, 9])</code> should return <code>[7, "ate", 9]</code>.");'
  - text: '<code>bouncer([&quot;a&quot;, &quot;b&quot;, &quot;c&quot;])</code> debe devolver <code>[&quot;a&quot;, &quot;b&quot;, &quot;c&quot;]</code> .'
    testString: 'assert.deepEqual(bouncer(["a", "b", "c"]), ["a", "b", "c"], "<code>bouncer(["a", "b", "c"])</code> should return <code>["a", "b", "c"]</code>.");'
  - text: '<code>bouncer([false, null, 0, NaN, undefined, &quot;&quot;])</code> debe devolver <code>[]</code> .'
    testString: 'assert.deepEqual(bouncer([false, null, 0, NaN, undefined, ""]), [], "<code>bouncer([false, null, 0, NaN, undefined, ""])</code> should return <code>[]</code>.");'
  - text: '<code>bouncer([1, null, NaN, 2, undefined])</code> debe devolver <code>[1, 2]</code> .'
    testString: 'assert.deepEqual(bouncer([1, null, NaN, 2, undefined]), [1, 2], "<code>bouncer([1, null, NaN, 2, undefined])</code> should return <code>[1, 2]</code>.");'

Challenge Seed

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

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

Solution

// solution required