SherryQueen
/ linux 相关命令
Last active
July 20, 2017 04:12
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| ps aux|grep java|awk '{print $2}'|xargs kill -9 批量杀死进程 | |
| tail -f filename 监听文件变化 及显示内容 -f 循环读取 | |
| sudo netstat -tunlp|grep {number} 查看端口使用情况 |
SherryQueen
/ meteor
Created
July 17, 2017 03:03
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| meteor-simple-schema autoValue自动生成值 在 schema.clean的过程中 |
SherryQueen
/ imagick 相关
Last active
December 16, 2017 03:05
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| pdf 盖章 | |
| magick convert -density 300 origin.pdf from.png # pdf转换城png | |
| magick convert from-1.png -compose over sign.png -geometry 403x403+1680+1600 -composite new.png # 在目标png上进行图片盖章 即将章图片覆盖到底图上 | |
| magick convert -density 300 from-0.png new.png to.pdf # 将盖完章的图重新合成pdf | |
| magick convert from.png -resize '3507x4960>' -background white -gravity center -extent '3507x4960>' to.png # 图片居中补白 | |
| magick convert .\1.png -crop 170x170+332+0 20.png # 图片裁剪 |
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| user www-data; # 用户组 | |
| worker_processes 2; # 工作核心 | |
| # 进程id位置 | |
| pid /run/nginx.pid; | |
| events { | |
| use epoll; # 设置工作模式 | |
| worker_connections 768; # 单进程最大连接数 | |
| } |
SherryQueen
/ npm
Last active
January 27, 2018 15:43
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| npm i --registry https://registry.npm.taobao.org | |
| npm i -g npm-check-updates vue-cli webpack express-generator mocha --registry https://registry.npm.taobao.org # node 版本更新后需要安装的 | |
| npm config set cache 'D:\Path\npm\npm-cache' | |
| npm config set prefix 'D:\Path\npm\npm-global' |
SherryQueen
/ keybindings.json
Last active
January 21, 2019 03:29
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| // 将键绑定放入此文件中以覆盖默认值 | |
| [ | |
| { | |
| "key": "ctrl+shift+u", | |
| "command": "editor.action.transformToUppercase" | |
| }, | |
| { | |
| "key": "ctrl+u", | |
| "command": "editor.action.transformToLowercase" | |
| } |
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| #user nobody; | |
| worker_processes 1; | |
| #error_log logs/error.log; | |
| #error_log logs/error.log notice; | |
| #error_log logs/error.log info; | |
| #pid logs/nginx.pid; |
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| 浏览器： setTimeout 与 setInterval 将队列加入任务队列中(只有当队列中任务执行完才会加入到执行栈中 在下一tick中检查计时——误差(若一tick执行过长 | |
| node： setImmediate 当前任务队列最后插入对应的事件 即总在下一个事件循环中开始执行对应的回调(在执行栈的栈顶 | |
| export default 时候 导出对象会 绑定到 default 对象 | |
| 需要通过 import ans from '' 来引用 而不能使用解构语法 |
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| require/exports 社区规范 可动态加载模块 地址可寻找 传递值或引用 | |
| import/export es6规范 静态编译 地址不可寻 强制 值绑定 即 将所有模块加载到一个js里面 | |
| 隐藏类 | |
| v8 会将拥有相同属性的(按相同顺序声明的同类型的对象 在vm中构建一个隐藏类 从而加快读取优化) 采用地址偏移从而避免高消耗的寻址 | |
| 内联缓存 | |
| 基于隐藏类, 在两次查找隐藏类后直接将偏移地址添加到对象上从而直接使用 | |
| 事件队列 | |
| 每个tick检查事件是否需要处理(检查已加入队列中的回调(完成的回调事件 |
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| "devDependencies": { | |
| "babel-core": "^6.26.0", | |
| "babel-loader": "^7.1.2", | |
| "babel-preset-es2015": "^6.24.1", | |
| "css-loader": "^0.28.7", | |
| "extract-text-webpack-plugin": "^3.0.2", | |
| "file-loader": "^1.1.5", | |
| "html-webpack-plugin": "^2.30.1", | |
| "node-sass": "^4.5.3", | |
| "optimize-css-assets-webpack-plugin": "^3.2.0", |
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