add some packages

node_modules/babel-plugin-minify-constant-folding/README.md

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+# babel-plugin-minify-constant-folding
+
+Tries to evaluate expressions and inline the result.
+
+## Example
+
+**In**
+
+```javascript
+"a" + "b"
+2 * 3;
+4 | 3;
+"b" + a + "c" + "d" + g + z + "f" + "h" + "i"
+
+[a, b, c].concat([d, e], f, g, [h]);
+["a", "b", "c"].join();
+["a", "b", "c"].join('@');
+[1, 2, 3].length;
+[1, 2, 3][1];
+[1, 2, 3].shift();
+[1, 2, 3].slice(0, 2);
+[a, b, c].pop();
+[a, b, c].reverse();
+"a,b,c".split(",");
+"abc"[0];
+"abc".charAt();
+"abc".charAt(1);
+"abc".length;
+```
+
+**Out**
+
+```javascript
+"ab";
+6;
+7;
+"b" + a + "cd" + g + z + "fhi";
+
+[a, b, c, d, e, f, g, h];
+"a,b,c";
+"a@b@c";
+3;
+2;
+2;
+[1, 2];
+c;
+[c, b, a];
+["a", "b", "c"];
+"a";
+"a";
+"a";
+"b";
+3;
+```
+
+## Installation
+
+```sh
+npm install babel-plugin-minify-constant-folding
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+```json
+{
+  "plugins": ["minify-constant-folding"]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins minify-constant-folding script.js
+```
+
+### Via Node API
+
+```javascript
+require("@babel/core").transform("code", {
+  plugins: ["minify-constant-folding"]
+});
+```
+
+## Options
+
++ `tdz` - Account for TDZ (Temporal Dead Zone)