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
40 lines
847 B
JavaScript
40 lines
847 B
JavaScript
'use strict';
|
|
|
|
var GetIntrinsic = require('get-intrinsic');
|
|
|
|
var $ArrayBuffer = GetIntrinsic('%ArrayBuffer%');
|
|
var $DataView = GetIntrinsic('%DataView%', true);
|
|
|
|
var callBound = require('call-bound');
|
|
|
|
// node <= 0.10, < 0.11.4 has a nonconfigurable own property instead of a prototype getter
|
|
var $dataViewBuffer = callBound('DataView.prototype.buffer', true);
|
|
|
|
var isTypedArray = require('is-typed-array');
|
|
|
|
/** @type {import('.')} */
|
|
module.exports = function isDataView(x) {
|
|
if (!x || typeof x !== 'object' || !$DataView || isTypedArray(x)) {
|
|
return false;
|
|
}
|
|
|
|
if ($dataViewBuffer) {
|
|
try {
|
|
$dataViewBuffer(x);
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (
|
|
('getInt8' in x)
|
|
&& typeof x.getInt8 === 'function'
|
|
&& x.getInt8 === new $DataView(new $ArrayBuffer(1)).getInt8
|
|
) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
};
|