JSFiddle - React, Tailwind, and code Playground

HTML

<div id="blah">
    blah
    <span>test</span>
         
    
    <span>hello</span>
</div>

JavaScript

console.log('Only non-blank text nodes:');
$('#blah')
        .contents()
        .filter(function(){
            return this.nodeType === 3 && $.trim(this.nodeValue) !== '';
        }).each(function(){console.log($(this).context.data); });
console.log('All text nodes:');
$('#blah')
        .contents()
        .filter(function(){
            return this.nodeType === 3;
        }).each(function(){console.log($(this).context.data); });