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
20 lines
804 B
JavaScript
20 lines
804 B
JavaScript
'use strict';
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var globalThis = require('../internals/global-this');
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var shared = require('../internals/shared');
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var hasOwn = require('../internals/has-own-property');
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var uid = require('../internals/uid');
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var NATIVE_SYMBOL = require('../internals/symbol-constructor-detection');
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var USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');
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var Symbol = globalThis.Symbol;
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var WellKnownSymbolsStore = shared('wks');
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var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol['for'] || Symbol : Symbol && Symbol.withoutSetter || uid;
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module.exports = function (name) {
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if (!hasOwn(WellKnownSymbolsStore, name)) {
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WellKnownSymbolsStore[name] = NATIVE_SYMBOL && hasOwn(Symbol, name)
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? Symbol[name]
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: createWellKnownSymbol('Symbol.' + name);
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} return WellKnownSymbolsStore[name];
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};
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