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
27 lines
1019 B
JavaScript
27 lines
1019 B
JavaScript
'use strict';
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var call = require('../internals/function-call');
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var isObject = require('../internals/is-object');
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var isSymbol = require('../internals/is-symbol');
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var getMethod = require('../internals/get-method');
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var ordinaryToPrimitive = require('../internals/ordinary-to-primitive');
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var wellKnownSymbol = require('../internals/well-known-symbol');
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var $TypeError = TypeError;
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var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
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// `ToPrimitive` abstract operation
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// https://tc39.es/ecma262/#sec-toprimitive
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module.exports = function (input, pref) {
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if (!isObject(input) || isSymbol(input)) return input;
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var exoticToPrim = getMethod(input, TO_PRIMITIVE);
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var result;
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if (exoticToPrim) {
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if (pref === undefined) pref = 'default';
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result = call(exoticToPrim, input, pref);
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if (!isObject(result) || isSymbol(result)) return result;
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throw new $TypeError("Can't convert object to primitive value");
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}
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if (pref === undefined) pref = 'number';
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return ordinaryToPrimitive(input, pref);
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};
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