code: function interElementWhiteSpace(node) {
    var value
  
    if (node && typeof node === 'object' && node.type === 'text') {
      value = node.value || ''
    } else if (typeof node === 'string') {
      value = node
    } else {
      return false
    }
  
    return value.replace(re, '') === ''
  }
docs: /* Check if `node` is a inter-element white-space.