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flowchart TB
    JsValue
    JsValue-->JsObject
    subgraph primitives [Primitive Types]
        JsBoolean
        JsNumber
        JsString
        JsNull
 JsUndefined

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const ATTRIBUTES = ['A', 'B', 'C', 'D', 'E', 'F'];

// type attribute = 'A' | 'B' | 'C' | 'D' | 'E' | 'F'
// type value = "x" | ""
// type combo = [value]

function combos() {
    return combosFrom(ATTRIBUTES, 0);
}

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.
├── ansi-escapes
│   ├── index.js
│   ├── license
│   ├── package.json
│   └── readme.md
├── ansi-escape-sequences
│   ├── jsdoc2md
│   │   └── README.hbs
│   ├── lib

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{
    "active": "release",
    "targets": {
        "release": {
            "rustc": "rustc 1.26.0 (a77568041 2018-05-07)",
            "env": {
                "npm_config_target": null,
                "npm_config_arch": null,
                "npm_config_target_arch": null,
                "npm_config_disturl": null,

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macro_rules! const1 {
    ($id:ident, $depth:expr, [$($prefix:tt)*])
        =>
    {
        const $id: [&'static str; $depth] = [$($prefix),*];
    };
}

macro_rules! const_tree_at {
    ($depth:tt ;

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Env vars

Sandboxing

• NOTION_HOME

Tool overrides

Possible environment variables

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• We want to provide good quality progress meters at console for fetch+unpack operation
• Measuring progress smoothly requires knowing not just how many compressed bytes you have read but how many decompressed bytes you have written
• Knowing the percentage complete of decompressed bytes written requires knowing the total decompressed size
• Knowing the total decompressed size requires reading the field of the gzip layout that indicates decompressed size
• That field is at a fixed offset from the end of the gzip file
• In order to still get benefit of streaming we have to make a separate HTTP HEAD request to find the content length of the file and then a subsequent GET request to fetch just that tiny byte range to read that one field
• (This does have overhead of a couple extra HTTP requests — anecdotally this seems cheap enough not to matter but maybe could matter in some environments?)
• Unfortunately for GitHub releases, the files redirect to S3 URLs which seem to reject HEAD requests with a 403
• We c

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Directory layout

.
├── bin
│   ├── node
│   ├── npm ~> ../exe/launchscript
│   ├── npx ~> ../exe/launchscript
│   └── yarn
├── config.toml

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Symmetric

Use

• notion use node 8
• notion use ember-cli 3.4
• notion use yarn 1.10
• notion install heroku 7
• notion install node 10
• notion install npm default

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Linkdump: Shared Library Constructors

• GCC: initialization
• Dynamic linking on OS X