Replacing <> arrows with HTML using only plain javascript

Question

Question

How can I replace a < with an anchor as an HTML wrapper?

Background

I am getting a JSON value with a Twitter user's name as something like <jgallardo949>

Since i don't want that printed to the page:

i want to replace the < with <a href="twitter.com/{{data.author}}">
and the > with </a>
The end result in the code will be <a href="twitter.com/jgallardo949">jgallardo949</a>
The end result on the page will just be: jgallardo949

I referenced other similar questions that I was able to find here and elsewhere. I got a start with the answers on Replace string of text javascript

My followup practice worked. But specifically the > symbol is having a challenge, or i am missing something?

Code

The top two work, the last one does not

HTML

<div class="label">With Profits Financial Strength:</div>
<div class="data rating">****</div>
<div class="data2 thing">+</div>
<div class="author twitter"> > </div>

JS

var str=document.getElementsByClassName("data" ,"raiting")[0].innerHTML; 
var n=str.replace(/\*/g,"star");
document.getElementsByClassName("data", "raiting")[0].innerHTML=n;



var str2=document.getElementsByClassName("data2" ,"thing")[0].innerHTML; 
var n2=str2.replace(/\+/g,"<h1>moon</h1>");
document.getElementsByClassName("data2", "thing")[0].innerHTML=n2;


var str3=document.getElementsByClassName("author" ,"twitter")[0].innerHTML; 
var n2=str3.replace(/\>/g,"<h1>moon3</h1>");
document.getElementsByClassName("author", "twitter")[0].innerHTML=n2;

Is the Twitter username always prefixed with exactly 1 < and suffixed with exactly 1 >? Or is this username an exception? — petetetete
– petetetete, Commented Jul 5, 2018 at 21:22
Yes @Peter, the username would be displayed in the format i listed — JGallardo
– JGallardo, Commented Jul 5, 2018 at 21:40

Asons · Accepted Answer · 2018-07-05 21:20:14Z

3

A > in HTML gets returned as > so doing like this (\>|>) and it will find both.

var n2=str3.replace(/(\>|&gt;)/g,"<h1>moon3</h1>");

Stack snippet

var str=document.getElementsByClassName("data" ,"raiting")[0].innerHTML; 
var n=str.replace(/\*/g,"star");
document.getElementsByClassName("data", "raiting")[0].innerHTML=n;



var str2=document.getElementsByClassName("data2" ,"thing")[0].innerHTML; 
var n2=str2.replace(/\+/g,"<h1>moon</h1>");
document.getElementsByClassName("data2", "thing")[0].innerHTML=n2;


var str3=document.getElementsByClassName("author" ,"twitter")[0].innerHTML; 
var n2=str3.replace(/(\>|&gt;)/g,"<h1>moon3</h1>");
document.getElementsByClassName("author", "twitter")[0].innerHTML=n2;

<div class="label">With Profits Financial Strength:</div>
<div class="data rating">****</div>
<div class="data2 thing">+</div>
<div class="author twitter"> > </div>

answered Jul 5, 2018 at 21:20

Asons

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9 Comments

JGallardo Over a year ago

This does absolutely answer my question, thank you. The problem is that I did not ask the right question since I also need to escape some values and perhaps not do innerHTML.

Asons Over a year ago

@JGallardo Based on how you will inject, not using innerHTML might inject a HTML element like this: jsfiddle.net/by0z3ujn ... and what about escape some values, what you mean to do with that?

JGallardo Over a year ago

Also wondering about targeting the character inside of a string. By itself, the > is wrapped just fine. But when something like <name> is returned, i am getting moon3 moon3 so looks like the middle portion (name) is not displayed at all, and either left or right (less-than greater-than) is subject to the change.

Asons Over a year ago

@JGallardo If you make me a jsfiddle, similar to my answer code sample, showing that <name> issue, I'll have a look.

JGallardo Over a year ago

Thanks, in the example, i am now just trying to do a simple wrap with an <h1> jsfiddle.net/L6ay70sp

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