Convert HTML Entities: FreeCodeCamp.com Intermediate Algorithm Scripting

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[wombat]

I was stuck on this one for two days, similar to old challenges, but I got it done :)

[leonel]

the easy way using regular expression

function convert(str) {
// :)

return str.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;").replace(/''/g, "marks&;").replace(/'/g, "&apos;");
}
convert("Shindler's List");
//

[JonathanPohlner]

Yeah, I noticed you did comments underneath.. but you actually inspired me to move them from above to trailing off to the right..

[devincohen]

I feel like you really should have shown this with regular expressions and the replace method.

However I did not think of doing it this way. Good job.

[Cognitoman]

I tired to do it the way they wanted it, but it says they are all wrong but in fact I checked it 3 times with all the arguments, and its comes out with the same answer on my end. Anyways, I thought I would share mine I thought mine looks a little different then everyone else's.




function convertHTML(str) {
var array1 = ['&', '<', '>', '\"', '\''];
var array2 = ['&amp', '&lt', '&gt', '&quot;', '&​apos;'];
var transString;
var boolean = false;

for (var i = 0; i < str.length; i++) {
if (str.indexOf(array1[i]) != -1) {
transString = array1[i];
transString = new RegExp(transString, 'g');
transString = str.replace(transString, array2[i]);
boolean = true;
return transString;
}
}
if (boolean) {
return boolean;
}
}

[abhishekchoudharykhatkar]

Hey I still don't get it, why you use placeHolder if it's difficult to type?
You could simply use arr

[aliquewilliams]

But your function iterates over string even though it may not need to. It also iterates over every character even though it may not need to.


function convert(str) {
var regex = /[&<>"']/g;

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

if (regex.test(str)){
var characters = str.match(regex);
characters.forEach(x => str = str.replace(x, HTML[x]));
}

return str;
}

[JasonCtutorials]

Dude it's so much more trouble with in javascript. In php is just htmlentities(); done. Then again there is probably form sanitize library out there somewhere.