Suppose I have the following string:
const test = "This is outside the HTML tag. <title>How to remove an HTML element using JavaScript ?</title>";
I'd like to remove the content within all HTML tags in that string. I have tried doing test.replace(/(<([^>]+)>)/gi, ''), but this only removes the HTML tags rather than all the content within it as well. I would expect the outcome to only be 'This is outside the HTML tag.'.
Is it possible to remove HTML tags and its contents within a string?
Rather than trying to remove the HTML element via Regex, it's much more straightforward to create and populate a DOM Fragment using:
let myDiv = document.createElement('div');
myDiv.innerHTML = test;
and then remove the <title> element from that, using:
myDivTitle = myDiv.querySelector('title');
myDiv.removeChild(myDivTitle);
Working Example (One Element):
const test = "This is outside the HTML tag. <title>How to remove an HTML element using JavaScript ?</title>";
let myDiv = document.createElement('div');
myDiv.innerHTML = test;
myDivTitle = myDiv.querySelector('title');
myDiv.removeChild(myDivTitle);
const testAfter = myDiv.innerHTML;
console.log(testAfter);The above works for one element (<title>) but you stated:
I'd like to remove the content within all HTML tags in that string
so let's try something more ambitious, using:
myDiv.querySelectorAll('*')
Working Example (All Elements):
const test = "<title>How to remove an HTML element using JavaScript ?</title> This is outside the HTML tag. <h1>Here we go...</h1> So is this. <p>This is going to save a lot of time trying to come up with regex patterns</p> This too.";
let myDiv = document.createElement('div');
myDiv.innerHTML = test;
myDivElements = myDiv.querySelectorAll('*');
for (let myDivElement of myDivElements) {
myDiv.removeChild(myDivElement);
}
const testAfter = myDiv.innerHTML;
console.log(testAfter);
for (myDivElement of myDivElements) { -> for (let myDivElement of myDivElements) {You should try like this :
var html = "<p>Hello, <b>Frields</b>";
var div = document.createElement("div");
div.innerHTML = html;
alert(div.innerText); // Hello, Frields
You can replace everything between the two elements by putting a Wildcard character between two of your regex
const test = "This is outside the HTML tag. <title>How to remove an HTML element using JavaScript ?</title>";
console.log(test.replace(/(<([^>]+)>).*(<([^>]+)>)/, ''))
