createOnceHandler() — vue Function Reference

Architecture documentation for the createOnceHandler() function in events.ts from the vue codebase.

Function typescript VueCore Instance

Entity Profile

VueCore→ Instance→ createOnceHandler() — vue Function Reference

Dependency Diagram

graph TD
  4f1173c3_4571_5597_263d_daa20e7b4a48["createOnceHandler()"]
  8c1ef0ac_57c2_7f8a_7ea7_6924e38bf16b["events.ts"]
  4f1173c3_4571_5597_263d_daa20e7b4a48 -->|defined in| 8c1ef0ac_57c2_7f8a_7ea7_6924e38bf16b
  style 4f1173c3_4571_5597_263d_daa20e7b4a48 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/core/instance/events.ts lines 32–40

function createOnceHandler(event, fn) {
  const _target = target
  return function onceHandler() {
    const res = fn.apply(null, arguments)
    if (res !== null) {
      _target.$off(event, onceHandler)
    }
  }
}