escape HTML chracters

I need to HTML encode chracters like my input 开发者_如何转开发is <test> my expected output is <test>.

How can I do this?

var encoded = htmlEncode('<test>');    // returns "&lt;test&gt;"

// ...

function htmlEncode(str) {
    var div = document.createElement('div');
    var txt = document.createTextNode(str);
    div.appendChild(txt);
    return div.innerHTML;
}

Encoder.js

• htmlDecode: Decodes HTML encoded text to its original state.
• htmlEncode: Encodes HTML to either numerical or HTML entities. This is determined by the EncodeType property.

HTML encode text from an input element. This will prevent double encoding.

var encoded = Encoder.htmlEncode(document.getElementById('input'));

To encode but to allow double encoding which means any existing entities such as & will be converted to &

var dblEncoded = Encoder.htmlEncode(document.getElementById('input'),true);

You are supposed to use HTML Entities to replicate special characters.

htmlspecialchars() and do your own str_replace() for the html comments

function simpleEscape(str) {
    return str.replace('<', '&lt;').replace('>', '&gt;');
}

var myStr = '<test>';
alert(simpleEscape(myStr));

Easiest I can think of (provided that this is all you intend to replace).