HTML symbol to entity algorithm challenge

challenge:

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

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For example:

convert("Dolce & Gabbana") should return Dolce &​amp; Gabbana.
convert("Hamburgers < Pizza < Tacos") should return Hamburgers <​lt; Pizza <​lt; Tacos.
convert("Sixty > twelve") should return Sixty >​gt; twelve.
convert('Stuff in "quotation marks"') should return Stuff in "quotation marks" .
convert("Shindler's List") should return Shindler's List.
convert("<>") should return &​lt;&​gt;.
convert("abc") should return abc.

Answer:

function convert(str) {
 var list = {
    "&":"&",
    "<":"&lt;",
    ">":"&gt;",
    '"':"&quot;,
    "'":"&apos;",   
  };
  for(var key in list){
    str=str.replace(new RegExp(key,"g"),list[key]);
  }
  return str;
}

convert("Dolce & Gabbana");

Running results:

Dolce & Gabbana

Online test:

HTML symbol to entity algorithm challenge | w3cschool

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