preact-arco-design/es/_util/mergedToString.js

Arco Design React UI Library.

/** merge multiple children to a string node */
import React from "preact/compat";
import { isString, isNumber } from "./is";

var isSingleNode = function isSingleNode(child) {
  return isString(child) || isNumber(child);
};

export default function mergedToString(children) {
  var mergedResult = [''];
  React.Children.forEach(children, function (child) {
    var prevIndex = mergedResult.length - 1;
    var prevChild = mergedResult[prevIndex];

    if (isSingleNode(child) && isSingleNode(prevChild)) {
      mergedResult[prevIndex] = "".concat(prevChild).concat(child);
    } else if (child && child.props && child.props.children) {
      mergedResult.push(mergedToString(child.props.children));
    }
  });
  return mergedResult.join('');
}