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Tidy up more core node help text

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Nick O'Leary
2017-05-23 17:26:23 +01:00
parent 3d2e6aea7b
commit dfe1cd4f90
7 changed files with 65 additions and 77 deletions
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32
nodes/core/core/80-function.html
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@@ -20,21 +20,15 @@
</script>
<script type="text/x-red" data-help-name="function">
<p>A function block where you can write code to do more interesting things.</p>
<p>The message is passed in as a JavaScript object called <code>msg</code>.</p>
<p>A JavaScript function block to run against the messages being received by the node.</p>
<p>The messages are passed in as a JavaScript object called <code>msg</code>.</p>
<p>By convention it will have a <code>msg.payload</code> property containing
the body of the message.</p>
<h4>Logging and Error Handling</h4>
<p>To log any information, or report an error, the following functions are available:</p>
<ul>
<li><code>node.log("Log message")</code></li>
<li><code>node.warn("Warning")</code></li>
<li><code>node.error("Error")</code></li>
</ul>
</p>
<p>The Catch node can also be used to handle errors. To invoke a Catch node,
pass <code>msg</code> as a second argument to <code>node.error</code>:</p>
<pre>node.error("Error",msg);</pre>
<p>The function is expected to return a message object (or multiple message objects), but can choose
to return nothing in order to halt a flow.</p>
<h3>Details</h3>
<p>See the <a target="_blank" href="http://nodered.org/docs/writing-functions.html">online documentation</a>
for more information on writing functions.</p>
<h4>Sending messages</h4>
<p>The function can either return the messages it wants to pass on to the next nodes
in the flow, or can call <code>node.send(messages)</code>.</p>
@@ -47,7 +41,17 @@
messages are sent to the corresponding output.</p>
<p>If null is returned, either by itself or as an element of the array, no
message is passed on.</p>
<p>See the <a target="_blank" href="http://nodered.org/docs/writing-functions.html">online documentation</a> for more help.</p>
<h4>Logging and Error Handling</h4>
<p>To log any information, or report an error, the following functions are available:</p>
<ul>
<li><code>node.log("Log message")</code></li>
<li><code>node.warn("Warning")</code></li>
<li><code>node.error("Error")</code></li>
</ul>
</p>
<p>The Catch node can also be used to handle errors. To invoke a Catch node,
pass <code>msg</code> as a second argument to <code>node.error</code>:</p>
<pre>node.error("Error",msg);</pre>
</script>
<script type="text/javascript">