<slide>
<title>Tips and hints: array keys</title>

<blurb>Don't do:</blurb>
<example><![CDATA[temperature: {
  _id: 42,
  points: [
    { 1332942067: 17.3 },
    { 1332942118: 17.5 }
  ]
}]]></example>
<break/>

<blurb>instead, do:</blurb>
<example><![CDATA[temperature: {
  _id: 42,
  points: [
    { ts: 1332942067, temp: 17.3 },
    { ts: 1332942118, temp: 17.5 }
  ]
}]]></example>
<break/>

<blurb>*Define and document your keys!*</blurb>
</slide>
