Day 40, 2020-10-03Day 37&38&39, 2020-09-30 & 2020-10-01 & 2020-10-02Day 35 & Day 36, 2020-09-28 & 2020-09-29Day 34, 2020-09-27Day 33, 2020-09-26Day 32 (Task 10), 2020-09-25Day 31 (9-2-10), 2020-09-24Day Thirty (A puzzle to be solved), 2020-09-22Day Twenty Nine, 2020-09-22Day Twenty-Eight (Task 9-2-9), 2020-09-21Day Twenty-Seven, 2020-09-20Day Twenty Six, 2020-09-19Day Twenty Five, 2020-09-18Day Twenty Four, 2020-09-17Day Twenty Two (Task 9-1 continued), 2020-09-15Day Twenty-One (Task 9-1 continued), 2020-09-14Day Twenty (Task 8 Continued + Task 9-1), 2020-09-13Day Nineteen (Task 8), Spet. 12, 2020Day Eighteen (Task 7-1-10, 11, Sept. 11, 2020Day Fourteen, Fifteen, Sixteen & Seventeen, Spet. 07 ~ 10, 2020Day Thirteen (Task 7-1), 2020-09-06Day Twelve, Sept. 5, 2020: ScalesDay Eleven, Sept.4th, 2020Day Ten (Task 6-6), Sept. 3rd, 2020Day Nine, 2020-09-02Day Eight, Spet. 1, 2020Day Six, 30 Aug 2020Day Five, 29 Aug 2020Day Four, 28 Aug 2020Day Three, 27 Aug 2020Day 1 & Day 2, 25 Aug. & 26 Aug., 2020, Basic Commands
Day Twenty Three (Task 9-2), 2020-09-16
md`# Day Twenty Three (Task 9-2), 2020-09-16`
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- 9-1. \`return "rgb(0, 0, " + Math.round(d*10) + ")"\`. You are not allowed to have space between \`rgb\` and \`(\`.
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md` ## Task 9-2
- 9-2-1. Make changes so that every time you click, new data will show up with transitions. The new data will be an array of random **integers** with values between 0 and 24. Let the new array have the same length as the original one (the one before any updates). *Hint* : Use a \`for\` loop.
- 9-2-2. Add extra logical to set the vertical placement and style of labels. "When the data value is less than or equal to 1, place the label up above the bar and set its fill to black. Otherwise, place and style the label normally"(p. 167).
- 9-2-3. We earlier used \`Math.random() * 25\`. Repalce \`25\` with a variable \`maxValue\`. Set the \`maxValue\` to be \`100\`. Remember to update the \`yScale\`.
**Note** : \`Math.random()\` generate random number from 0 up to, but not including 1.
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- 9-2-4. Based on the results we got from Task 8, do the following: 1. Delete the CSS for .axis path, line, and text; 2. Let the radius of each circle be a constant: 2 px. Then, do the following:
1. Rename the class of xAxis as \`x axis\` and that of yAxis as \`y axis\`.
2. When people click on the text "Click here for new data", a new pair of 50 integers between 0 and 100 will show up. Make transitions to these changes and set the duration to be 1 second. Make sure that scales, and both the axes are also updated. *Hint* : to update the axes, first select the axis, and make a transition, set the transition's duration, and call the axis generator.
- 9-2-5. Make changes to the code so that when you click the trigger, the fill of all the circles changes to magenta, and the radius becomes 3 px. When the transition is over, the fill changes to black and the radii become 2px.
- *Hint* : Within circle-updating code, use two \`.on()\` statements, whithin which you need to first specify whether it's \`start\` or \`end\`, and then use an anonymous function to first select the current element and set the attributions.
- 9-2-6. Add a transition (which lasts for 1 second) to the start of the transtion and see what happend.
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Go to [Day 24](https://observablehq.com/@hongtaoh/untitled).
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