moy-dom/src/patch/setProps.js

A flexiable Virtual DOM library for building modern web interface.

import {
  domAttrs,
  boolAttrs,
} from '../specialAttrs'

/**
 * [setProps set node propertities with given props]
 * @param {[DOMElement]} node  [the node]
 * @param {[Object]} props [given props]
 * @return {[undefined]}                [undefined]
 */
export default function setProps(node, props){
  for(let [key, value] of Object.entries(props)){
    if(domAttrs[key] || /^on\w+/.test(key)){
      node[key] = value === undefined ? null : value
    }else if(boolAttrs[key]){
      if(value){
        node.setAttribute(key, key)
      }else{
        node.removeAttribute(key)
      }
    }else{
      if(value === undefined){
        node.removeAttribute(key)
      }else{
        node.setAttribute(key, value)
      }
    }
  }
}