checkProp() — vue Function Reference

Architecture documentation for the checkProp() function in extract-props.ts from the vue codebase.

Function typescript CoreRuntime VirtualDOM called by 1

Entity Profile

CoreRuntime→ VirtualDOM→ checkProp() — vue Function Reference

Dependency Diagram

graph TD
  0b4ef925_7e1d_0c62_8ba5_84941fd9041f["checkProp()"]
  88a87f42_1e30_d56d_fbd3_9595081aa349["extract-props.ts"]
  0b4ef925_7e1d_0c62_8ba5_84941fd9041f -->|defined in| 88a87f42_1e30_d56d_fbd3_9595081aa349
  40c76c03_d6c8_1867_e41e_8302179375b5["extractPropsFromVNodeData()"]
  40c76c03_d6c8_1867_e41e_8302179375b5 -->|calls| 0b4ef925_7e1d_0c62_8ba5_84941fd9041f
  style 0b4ef925_7e1d_0c62_8ba5_84941fd9041f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/core/vdom/helpers/extract-props.ts lines 52–75

function checkProp(
  res: Object,
  hash: Object | undefined,
  key: string,
  altKey: string,
  preserve: boolean
): boolean {
  if (isDef(hash)) {
    if (hasOwn(hash, key)) {
      res[key] = hash[key]
      if (!preserve) {
        delete hash[key]
      }
      return true
    } else if (hasOwn(hash, altKey)) {
      res[key] = hash[altKey]
      if (!preserve) {
        delete hash[altKey]
      }
      return true
    }
  }
  return false
}