@sanity/desk-tool/lib/utils/useShallowUnique.js

Tool for managing all sorts of content in a structured manner

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useShallowUnique = useShallowUnique;
var _react = require("react");
var _shallowEquals = _interopRequireDefault(require("shallow-equals"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
 * This is a React hook that can be used to make sure a value is the same,
 * when none of it’s values have changed.
 *
 * This is useful for preventing unnecessary renders in some case.
 *
 * @internal
 */
function useShallowUnique(value) {
  var valueRef = (0, _react.useRef)(value);
  if (!(0, _shallowEquals.default)(valueRef.current, value)) {
    valueRef.current = value;
  }
  return valueRef.current;
}