node-red/nodes/core/core/80-function.html

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    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
    <div class="form-row">
        <label for="node-input-func"><i class="icon-wrench"></i> Function</label>
        <input type="hidden" id="node-input-func" autofocus="autofocus">
        <div style="height: 250px;" class="node-text-editor" id="node-input-func-editor" ></div>
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    <div class="form-row">
        <label for="node-input-outputs"><i class="icon-random"></i> Outputs</label>
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<script type="text/x-red" data-help-name="function">
	<p>The generic function block where you can write code to do more interesting things.</p>
	<p>You can have multiple outputs - in which case the function expects you to return an array of messages... <pre>return [msg,msg2,...];</pre></p>
	<p>You may return null for any or all outputs if you want to.</p>
	<p>You can save your functions to a library (button to right of name field) - and likewise pick from that library.</p>
</script>

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