freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/convert-html-entities.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
a6b0bb188d873cb2c8729495	Convert HTML Entities	5	16007	convert-html-entities

--description--

Convert the characters &, <, >, " (double quote), and ' (apostrophe), in a string to their corresponding HTML entities.

--hints--

convertHTML("Dolce & Gabbana") should return the string Dolce & Gabbana.

assert.match(convertHTML('Dolce & Gabbana'), /Dolce & Gabbana/);

convertHTML("Hamburgers < Pizza < Tacos") should return the string Hamburgers < Pizza < Tacos.

assert.match(
  convertHTML('Hamburgers < Pizza < Tacos'),
  /Hamburgers &lt; Pizza &lt; Tacos/
);

convertHTML("Sixty > twelve") should return the string Sixty > twelve.

assert.match(convertHTML('Sixty > twelve'), /Sixty > twelve/);

convertHTML('Stuff in "quotation marks"') should return the string Stuff in "quotation marks".

assert.match(
  convertHTML('Stuff in "quotation marks"'),
  /Stuff in "quotation marks"/
);

convertHTML("Schindler's List") should return the string Schindler's List.

assert.match(convertHTML("Schindler's List"), /Schindler's List/);

convertHTML("<>") should return the string <>.

assert.match(convertHTML('<>'), /&lt;&gt;/);

convertHTML("abc") should return the string abc.

assert.strictEqual(convertHTML('abc'), 'abc');

--seed--

--seed-contents--

function convertHTML(str) {
  return str;
}

convertHTML("Dolce & Gabbana");

--solutions--

var MAP = { '&': '&',
            '<': '&lt;',
            '>': '&gt;',
            '"': '&quot;',
            "'": '&apos;'};

function convertHTML(str) {
  return str.replace(/[&<>"']/g, function(c) {
    return MAP[c];
  });
}