node-red-contrib-repeat/lib/repeat.html

Limit the number of times a message is allowed to pass through the node before it is discarded

<script type="text/javascript">
    RED.nodes.registerType('repeat',{
        category: 'function',
        color: '#E2D96E',
        defaults: {
            name: {value: ""},
            repetitions: {},
            elseOutput: {value: false},
            outputs: {value: 1}  // Ofuscated way to persist the number of outputs of the node
        },
        inputs: 1,
        outputs: 1,
        icon: "repeat.png",
        label: function() {
            return this.name || "Repeat " + (this.repetitions || "N") + " times";
        },
        oneditsave: function () {
            var elseOutputActivated = document.getElementById('node-input-elseOutput').checked;
            this.outputs = elseOutputActivated ? 2 : 1;
        }
    });
</script>

<script type="text/x-red" data-template-name="repeat">
    <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-repetitions"><i class="fa fa-undo"></i> Repetitions</label>
        <input type="number" id="node-input-repetitions", style="width:80px">
    </div>
    <div class="form-row">
        <label for="node-input-elseOutput"><i class="icon-random"></i> Else Output</label>
        <input type="checkbox" id="node-input-elseOutput", style="width:auto;vertical-align:top">
    </div>
</script>

<script type="text/x-red" data-help-name="repeat">
    <p>Allow a message to pass through this node for an specific number of times, after which it will be discarded, unveiling the ability to limit the loops over a flow to N times.</p>
    <p>If <code>Else Output</code> is activated, a second output is enabled that will receive the message once when the repetitions have been exhausted</p>
    <p>The number of times the message can loop can be configured in the node or specified in the <code>msg.repetitions</code> property which, as usual, will take precedence over the node configuration</p>
    <p>Note: This node will create a new property <b>msg._loopController</b> that will hold the loop state for that message, including information about the <b>loops</b> executed
       and the <b>remaining</b> loops.</p>
    <p><b>Currently there is no support for more than one <code>repeat</code> node operating upon a message simultaneously</b></p>
</script>