const ReadlineReverse = require('readline-reverse')
// init
const reader = new ReadlineReverse()
// open file
await reader.open('/path/to/your/file')
// read n lines reversely
const lastThreeLine = await reader.read(3)
// close file
await reader.close()
Api
constructor(options = {})
Param
Type
Default
Description
options
object
{}
options
options.flags
string
r
open file with flag
options.separator
string
\n
line separator
options.encoding
string
utf8
read file with encoding
options.bufferSize
string
4096
read buffer size, better bigger than average size of one line
options.maxLineLength
number
0
max line length, will throw error when exceed, 0 represent unlimited
open(filepath)
Param
Type
Default
Description
filepath
string
path of the file your want to read
read(line = 1) ā string[]
Param
Type
Default
Description
line
number
1
number of lines
close()
Param
Type
Default
Description
none
License
MIT License
Copyright (c) 2018 Baffin Lee
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.