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In Place Editing Advanced Editing
  • References
  • JavaScript
  • D3.js
  • Collection

nest.rollup()

nest.rollup(function)

Specifies a rollup function to be applied on each group of leaf elements. The return value of the rollup function will replace the array of leaf values in either the associative array returned by nest.map or nest.object; for nest.entries, it replaces the leaf entry.values with entry.value.

Links:
  • https://github.com/d3/d3-collection#nest_rollup
doc_D3_Js
doc_D3_Js
2025-01-10 15:47:30
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