bindObjectListeners() — vue Function Reference

Source Code

src/core/instance/render-helpers/bind-object-listeners.ts lines 4–18

export function bindObjectListeners(data: any, value: any): VNodeData {
  if (value) {
    if (!isPlainObject(value)) {
      __DEV__ && warn('v-on without argument expects an Object value', this)
    } else {
      const on = (data.on = data.on ? extend({}, data.on) : {})
      for (const key in value) {
        const existing = on[key]
        const ours = value[key]
        on[key] = existing ? [].concat(existing, ours) : ours
      }
    }
  }
  return data
}