hyperapp/src/h.js

1 KB JavaScript library for building frontend applications.

var i
var stack = []

export function h(tag, data) {
  var node
  var children = []

  for (i = arguments.length; i-- > 2; ) {
    stack.push(arguments[i])
  }

  while (stack.length) {
    if (Array.isArray((node = stack.pop()))) {
      for (i = node.length; i--; ) {
        stack.push(node[i])
      }
    } else if (node != null && node !== true && node !== false) {
      if (typeof node === "number") {
        node = node + ""
      }
      children.push(node)
    }
  }

  return typeof tag === "string"
    ? {
        tag: tag,
        data: data || {},
        children: children
      }
    : tag(data, children)
}