source:
node_modules/d3-hierarchy/src/hierarchy/count.js
| Last change on this file was e4c61dd, checked in by , 6 months ago | |
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| File size: 263 bytes | |
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| 1 | function count(node) { |
| 2 | var sum = 0, |
| 3 | children = node.children, |
| 4 | i = children && children.length; |
| 5 | if (!i) sum = 1; |
| 6 | else while (--i >= 0) sum += children[i].value; |
| 7 | node.value = sum; |
| 8 | } |
| 9 | |
| 10 | export default function() { |
| 11 | return this.eachAfter(count); |
| 12 | } |
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