ramda/src/internal/_xfindLastIndex.js

A practical functional library for JavaScript programmers.

var _xfBase = /*#__PURE__*/require("./_xfBase.js");
var XFindLastIndex = /*#__PURE__*/function () {
  function XFindLastIndex(f, xf) {
    this.xf = xf;
    this.f = f;
    this.idx = -1;
    this.lastIdx = -1;
  }
  XFindLastIndex.prototype['@@transducer/init'] = _xfBase.init;
  XFindLastIndex.prototype['@@transducer/result'] = function (result) {
    return this.xf['@@transducer/result'](this.xf['@@transducer/step'](result, this.lastIdx));
  };
  XFindLastIndex.prototype['@@transducer/step'] = function (result, input) {
    this.idx += 1;
    if (this.f(input)) {
      this.lastIdx = this.idx;
    }
    return result;
  };
  return XFindLastIndex;
}();
function _xfindLastIndex(f) {
  return function (xf) {
    return new XFindLastIndex(f, xf);
  };
}
module.exports = _xfindLastIndex;