moy-dom/src/listDiff/insert.js

A flexiable Virtual DOM library for building modern web interface.

/**
 * [insert insert a given location item to a list]
 * @param  {[Number]} newIndex     [index]
 * @param  {[Any]} newItem      [item]
 * @param  {[Array]} simulateList [list]
 * @param  {[Object]} changes      [changes]
 * @return {[undefined]}              [undefined]
 */
export default function insert(newIndex, newItem, simulateList, changes){
  simulateList.splice(newIndex, 0, newItem)
  changes.push({
    type: 2,
    index: newIndex,
    item: newItem,
  })
}