a/20049344/1636522

by wared

HTML

<p>hello \world :)</p>

CSS

b{color:red}

JavaScript

$('p').html(
    highlight($('p').html(), ':)')
);
$('p').html(
    highlight($('p').html(), '\\w')
);
function highlight(s, search) {
    return s.replace(new RegExp(
        search.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'gi'
    ), '<b>$&</b>');
}