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
38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
'use strict'
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const stream = require('stream')
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const check = require('check-types')
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const parse = require('./parse')
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module.exports = unpipe
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/**
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* Public function `unpipe`.
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*
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* Returns a writeable stream that can be passed to stream.pipe, then parses JSON
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* data read from the stream. If there are no errors, the callback is invoked with
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* the result as the second argument. If errors occur, the first error is passed to
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* the callback as the first argument.
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*
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* @param callback: Function that will be called after parsing is complete.
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*
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* @option reviver: Transformation function, invoked depth-first.
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*
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* @option discard: The number of characters to process before discarding them
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* to save memory. The default value is `1048576`.
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*
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* @option yieldRate: The number of data items to process per timeslice,
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* default is 16384.
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**/
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function unpipe (callback, options) {
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check.assert.function(callback, 'Invalid callback argument')
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const jsonstream = new stream.PassThrough()
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parse(jsonstream, { ...options, ndjson: false })
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.then(data => callback(null, data))
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.catch(error => callback(error))
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return jsonstream
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}
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