You can remove <script> tags from an HTML string in JavaScript using a few different methods. Here are a couple of common approaches:
1. Using Regular Expressions
You can use a regular expression to match and remove the <script> tags:
#javascript
function removeScriptTags(htmlString) {
return htmlString.replace(/<script[^>]*>.*?<\/script>/gi, '');
}
const html = '<div>Hello</div><script>alert("Hi!");</script>';
const cleanedHtml = removeScriptTags(html);
console.log(cleanedHtml); // Output: <div>Hello</div>2. Using DOM Parsing
Another approach is to create a temporary DOM element, set its innerHTML, and then retrieve the content without the <script> tags:
#javascript
function removeScriptTags(htmlString) {
const tempDiv = document.createElement('div');
tempDiv.innerHTML = htmlString;
// Remove all script elements
const scripts = tempDiv.getElementsByTagName('script');
while (scripts[0]) {
scripts[0].parentNode.removeChild(scripts[0]);
}
return tempDiv.innerHTML;
}
const html = '<div>Hello</div><script>alert("Hi!");</script>';
const cleanedHtml = removeScriptTags(html);
console.log(cleanedHtml); // Output: <div>Hello</div>Notes
- The regex method can be less reliable for complex HTML structures, especially if there are nested tags or other irregularities.
- The DOM parsing method is generally safer and more robust, as it leverages the browser’s HTML parsing capabilities.
Choose the method that best fits your needs!
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