安装插件chartjs-node前提条件 ##linux Ubuntu下部署 运行如下命令： sudo apt-get install libcairo2-dev libjpeg-dev libpango1.0-dev libgif-dev build-essential g++ ##windows下部署 参考如下网址: https://cnodejs.org/topic/505080cb5aa28e09430d89b0
Inspect Node instances deep in the process tree
Determine if the current node version supports the `--preserve-symlinks` flag.
Inspect Node package-manager lockfile consistency with structured diagnostics.
string representations of objects in node and the browser
Info about node `exports` field support: version ranges, categories, etc.
Is this specifier a node.js core module?
Inspect node repository for tech debt and quality
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
node's assert.deepEqual algorithm
Get the ArrayBuffer out of a TypedArray, robustly.
Get the byteOffset out of a DataView, robustly.
Get the byteLength out of a DataView, robustly.
Get the ArrayBuffer out of a DataView, robustly.
Determine if the JS environment has Symbol support. Supports spec, or shams.
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Does this JS environment support the `name` property on functions?
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Is this value negative zero? === will lie to you
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
Determine if a value is an ES6 Symbol or not.
Determine if a function is a native generator function.
Returns an array of Typed Array names that are available in the current environment