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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | 1x 2x 2x 2x 2x | /** * Copyright 2018 Google Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * Stringfy a POJO and preserve its functions. * * Courtesy of @cowboy * https://gist.github.com/cowboy/3749767 * @param obj */ export function stringify(obj: object) { const placeholder = '____PLACEHOLDER____'; const fns: string[] = []; let json = JSON.stringify(obj, (key: string, value: string) => { if (typeof value === 'function') { fns.push(value); return placeholder; } return value; }, 2); json = json.replace(new RegExp('"' + placeholder + '"', 'g'), () => { const result = fns.shift(); if (!result) { return ''; } return result; }); return json + ';'; } |