dist/vue.esm.browser.js
function normalizeProps (options, vm) {
  const props = options.props;
  if (!props) return
  const res = {};
  let i, val, name;
  if (Array.isArray(props)) {
    i = props.length;
    while (i--) {
      val = props[i];
      if (typeof val === 'string') {
        name = camelize(val);
        res[name] = { type: null };
      } else {
        warn('props must be strings when using array syntax.');
      }
    }
  } else if (isPlainObject(props)) {
    for (const key in props) {
      val = props[key];
      name = camelize(key);
      res[name] = isPlainObject(val)
        ? val
        : { type: val };
    }
  } else {
    warn(
      `Invalid value for option "props": expected an Array or an Object, ` +
      `but got ${toRawType(props)}.`,
      vm
    );
  }
  options.props = res;
}
function normalizeProps (options, vm) {
  const props = options.props;
  if (!props) return
  const res = {};
  let i, val, name;
  if (Array.isArray(props)) {
    i = props.length;
    while (i--) {
      val = props[i];
      if (typeof val === 'string') {
        name = camelize(val);
        res[name] = { type: null };
      } else {
        warn('props must be strings when using array syntax.');
      }
    }
  } else if (isPlainObject(props)) {
    for (const key in props) {
      val = props[key];
      name = camelize(key);
      res[name] = isPlainObject(val)
        ? val
        : { type: val };
    }
  } else {
    warn(
      `Invalid value for option "props": expected an Array or an Object, ` +
      `but got ${toRawType(props)}.`,
      vm
    );
  }
  options.props = res;
}
function normalizeProps ( options , vm ) { const props = options . props ; if ( ! props ) return const res = { } ; let i , val , name ; if ( Array . isArray ( props ) ) { i = props . length ; while ( i -- ) { val = props [ i ] ; if ( typeof val === 'string' ) { name = camelize ( val ) ; res [ name ] = { type : null } ; } else { warn ( 'props must be strings when using array syntax.' ) ; } } } else if ( isPlainObject ( props ) ) { for ( const key in props ) { val = props [ key ] ; name = camelize ( key ) ; res [ name ] = isPlainObject ( val ) ? val : { type : val } ; } } else { warn ( ` ` + ` ${ toRawType ( props ) } ` , vm ) ; } options . props = res ; }
Ensure all props option syntax are normalized into the
Object-based format.
Ensure all props option syntax are normalized into the Object - based format .