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https://github.com/openobserve/openobserve.git
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Abhay PadamaniandClaude Opus 4.8
5ec9b89ff8
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
50 lines
2.3 KiB
TypeScript
50 lines
2.3 KiB
TypeScript
// Copyright 2026 OpenObserve Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Retrieves a value from an object using a case-insensitive fallback strategy.
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*
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* Performance-critical: may be called millions of times in nested loops.
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* Handles numeric keys, camelCase vs lowercase string keys, falsy values
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* (0, false, '', null) which are valid and returned as-is, and null/undefined
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* objects/aliases (returns undefined without throwing).
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*
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* Search strategy: exact (case-sensitive) match first; if not found and alias
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* is a string, falls back to its lowercase form. Uses strict inequality (!==)
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* so falsy values like 0 and false are returned rather than treated as missing.
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*
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* @param obj - The object to search in (can be null/undefined)
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* @param alias - The key to search for (string or number, can be null/undefined)
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* @returns The value if found, undefined otherwise (never throws errors)
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*
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* @example
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* getDataValue({ xAxis: 'time' }, 'xAxis') // Returns 'time'
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* getDataValue({ xaxis: 'time' }, 'xAxis') // Returns 'time' (lowercase fallback)
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* getDataValue({ 100: 25.5 }, 100) // Returns 25.5
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* getDataValue({ count: 0 }, 'count') // Returns 0 (not undefined)
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* getDataValue({ flag: false }, 'flag') // Returns false (not undefined)
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* getDataValue(null, 'key') // Returns undefined (no error)
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* getDataValue({ key: 'value' }, null) // Returns undefined (no error)
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*/
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export const getDataValue = (obj: any, alias: string | number): any => {
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if (!obj || alias == null) return undefined;
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const value = obj[alias];
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if (value !== undefined) return value;
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// Lowercase fallback only for string keys; numeric keys don't need it.
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return typeof alias === "string" ? obj[alias.toLowerCase()] : undefined;
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};
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