mostly-dom/src/helpers.ts

A virtual-dom for TypeScript

import { VNode } from './'

export function isString(x: any): x is string {
  return typeof x === 'string'
}

export function isNumber(x: any): x is number {
  return typeof x === 'number'
}

export function isPrimitive(x: any): x is (string | number) {
  return isString(x) || isNumber(x)
}

export function vNodesAreEqual(formerVNode: VNode, vNode: VNode) {
  return formerVNode.key === vNode.key && formerVNode.tagName === vNode.tagName
}