flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
16 lines
430 B
JavaScript
16 lines
430 B
JavaScript
/**
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* Checks if `value` is suitable for use as unique object key.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is suitable, else `false`.
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*/
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function isKeyable(value) {
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var type = typeof value;
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return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
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? (value !== '__proto__')
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: (value === null);
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}
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module.exports = isKeyable;
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