createKeyToOldIdx() — vue Function Reference

Architecture documentation for the createKeyToOldIdx() function in patch.ts from the vue codebase.

Function typescript CoreRuntime Observer called by 1

Entity Profile

CoreRuntime→ Observer→ createKeyToOldIdx() — vue Function Reference

Dependency Diagram

graph TD
  8a79fd0e_46ca_b056_3bc3_56040185a03e["createKeyToOldIdx()"]
  0df06241_48e0_316d_48c2_6f91c7a049b1["patch.ts"]
  8a79fd0e_46ca_b056_3bc3_56040185a03e -->|defined in| 0df06241_48e0_316d_48c2_6f91c7a049b1
  3bb2ae4b_c366_ee68_8304_5578e138a454["createPatchFunction()"]
  3bb2ae4b_c366_ee68_8304_5578e138a454 -->|calls| 8a79fd0e_46ca_b056_3bc3_56040185a03e
  style 8a79fd0e_46ca_b056_3bc3_56040185a03e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/core/vdom/patch.ts lines 56–64

function createKeyToOldIdx(children, beginIdx, endIdx) {
  let i, key
  const map = {}
  for (i = beginIdx; i <= endIdx; ++i) {
    key = children[i].key
    if (isDef(key)) map[key] = i
  }
  return map
}