30:[] 2e:{"title":"Martien’s Ticker","cells":[{"id":0,"value":"md`# Martien’s Ticker`","pinned":false,"hidden":false,"mode":"ojs"},{"id":21,"value":"html`\n\n

${tick.toLocaleString()}

`","pinned":false,"hidden":false,"mode":"ojs"},{"id":2,"value":"viewof Hz = html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":23,"value":"viewof fontsize = html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":39,"value":"","pinned":false,"hidden":false,"mode":"ojs"},{"id":6,"value":"md`Count the number of ticks since midnight.\n\nDrag the slider to adjust the resolution (ticks per second).\n\nUse it, for example, to calculate the **cycle time** of work items:\n1. jot down the time when work on the item starts and finishes; and\n1. subtract the two.\n\nAdd 1 to the cycle time if the resolution is low; e.g. starting and finishing an item on the same day still takes one rather than a zero day.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":7,"value":"md`Play around with some fonts. Please note that these fonts need to be present on your device in order to display correctly.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":9,"value":"viewof font = html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":12,"value":"html`

`","pinned":false,"hidden":false,"mode":"ojs"},{"id":15,"value":"md`# Engine Room`","pinned":false,"hidden":false,"mode":"ojs"},{"id":19,"value":"tick = {\n // every ticksPerSecond yield the number of ticks since midnight\n const interval = 1000 / Hz; // 1000 ms in 1 s\n while (true) {\n const secondsSinceMidnight = (new Date() - new Date().setHours(0,0,0,0)) / 1000;\n const ticksSinceMidnight = Math.floor(secondsSinceMidnight * Hz);\n \n yield Promises.tick(interval).then(() => ticksSinceMidnight);\n }\n}","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W30","stdlib":"1","titling":"auto"}