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38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/czabaj/stringify-replacers/main/replacers.ts
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import { Replacer } from "./types.d.ts";
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import { printType } from "./utils.ts";
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export const identityReplacer: Replacer = (k, v) => v;
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/**
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* Prints deep objects only to certain depth
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*/
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export const maxDepthReplacer = (maxDepth: number): Replacer => {
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if (maxDepth === 0) {
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return identityReplacer;
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}
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if (maxDepth === 1) {
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return (k, v) =>
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k !== `` && v && typeof v === `object` ? printType.call(v) : v;
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}
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const depthTrack = new Map<Record<string, unknown>, number>();
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return function (k, v) {
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const currentDepth = depthTrack.get(this) || 0;
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if (v && typeof v === `object`) {
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if (currentDepth >= maxDepth) {
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return printType.call(v);
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}
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depthTrack.set(v, currentDepth + 1);
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}
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return v;
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};
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};
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/**
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* Add support to serialize ES6 Map
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*/
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export const serializeMapReplacer: Replacer = (k, v) =>
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v && v instanceof Map ? Object.fromEntries(v.entries()) : v;
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