I have a script to swap text back and forth:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
var words = [];
words.push('vocabulary');
words.push('lexicon');
words.push('lexicons');
</script>
<p id="demo">A vocabulary is a list of words that an individual knows or uses regularly. vocabulary is different from lexicon because vocabulary is about what an individual or group of people know, whereas lexicon is about the language itself. In this paragraph, lexicons is a new word that's added, so don't forget to push 'lexicons' in your array.</p>
<script>
function toggle(element) {
if (element.innerHTML.split('_').join('').trim().length === 0) {
element.innerHTML = element.getAttribute("word");
} else {
element.innerHTML = "_______";
}
}
$.each(words, function(index, value) {
var replacestr = new RegExp('\b'+value+'\b', "g");
$("p#demo:contains('" + value + "')").html(function(_, html) {
return html.replace(replacestr, ' <span class = "smallcaps" word="' + value + '" onclick="toggle(this)">_______</span>')
});
});
</script>
