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https://github.com/angular/angular
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32ed78bcbe
Previously this would take ~3500ms adev. This updated logic avoids the constant JSON.stringify implementation and instead checks for serializable values directly. After this change this code path for adev takes less than 20ms. (Benchmarks taken on an M1 Macbook Pro) PR Close #64234
51 lines
1.3 KiB
TypeScript
51 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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export function sanitizeObject(obj: any): any {
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// Keep track of visited objects to detect circular references.
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const seen = new WeakSet();
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function recurse(value: any): any {
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// Primitives and null
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if (value === null || typeof value !== 'object') {
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// Some primitives are not serializable
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if (
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typeof value === 'function' ||
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typeof value === 'symbol' ||
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typeof value === 'bigint' ||
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value === undefined
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) {
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return '[Non-serializable data]';
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}
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// Most other primitives are serializable
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return value;
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}
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// Down here we only have objects
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// Check for circular references
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if (seen.has(value)) {
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return '[Circular]';
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}
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seen.add(value);
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// Recursively serialize arrays
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if (Array.isArray(value)) {
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return value.map(recurse);
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}
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// Recursively serialize objects
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const result: Record<string, any> = {};
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for (const [key, propValue] of Object.entries(value)) {
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result[key] = recurse(propValue);
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}
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return result;
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}
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return recurse(obj);
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}
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