mergeDefaults() — vue Function Reference

Architecture documentation for the mergeDefaults() function in apiSetup.ts from the vue codebase.

Function typescript CompilerSFC StyleProcessor calls 1

Entity Profile

CompilerSFC→ StyleProcessor→ mergeDefaults() — vue Function Reference

Dependency Diagram

graph TD
  e4455613_7026_9658_e8cc_38f80e7f8eaf["mergeDefaults()"]
  4ad51b1f_61ec_31ba_dbb7_667d6a0a8c85["apiSetup.ts"]
  e4455613_7026_9658_e8cc_38f80e7f8eaf -->|defined in| 4ad51b1f_61ec_31ba_dbb7_667d6a0a8c85
  13ab3a27_e98e_1f11_fa3d_2ae15be5c797["isFunction()"]
  e4455613_7026_9658_e8cc_38f80e7f8eaf -->|calls| 13ab3a27_e98e_1f11_fa3d_2ae15be5c797
  style e4455613_7026_9658_e8cc_38f80e7f8eaf fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/v3/apiSetup.ts lines 221–246

export function mergeDefaults(
  raw: string[] | Record<string, PropOptions>,
  defaults: Record<string, any>
): Record<string, PropOptions> {
  const props = isArray(raw)
    ? raw.reduce(
        (normalized, p) => ((normalized[p] = {}), normalized),
        {} as Record<string, PropOptions>
      )
    : raw
  for (const key in defaults) {
    const opt = props[key]
    if (opt) {
      if (isArray(opt) || isFunction(opt)) {
        props[key] = { type: opt, default: defaults[key] }
      } else {
        opt.default = defaults[key]
      }
    } else if (opt === null) {
      props[key] = { default: defaults[key] }
    } else if (__DEV__) {
      warn(`props default key "${key}" has no corresponding declaration.`)
    }
  }
  return props
}