@ngrx/core/operator/select.js

Core operators and utiliies for the ngrx platform

"use strict";
var pluck_1 = require('rxjs/operator/pluck');
var map_1 = require('rxjs/operator/map');
var distinctUntilChanged_1 = require('rxjs/operator/distinctUntilChanged');
function select(pathOrMapFn) {
    var paths = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        paths[_i - 1] = arguments[_i];
    }
    var mapped$;
    if (typeof pathOrMapFn === 'string') {
        mapped$ = pluck_1.pluck.call.apply(pluck_1.pluck, [this, pathOrMapFn].concat(paths));
    }
    else if (typeof pathOrMapFn === 'function') {
        mapped$ = map_1.map.call(this, pathOrMapFn);
    }
    else {
        throw new TypeError(("Unexpected type " + typeof pathOrMapFn + " in select operator,")
            + " expected 'string' or 'function'");
    }
    return distinctUntilChanged_1.distinctUntilChanged.call(mapped$);
}
exports.select = select;