### Install shift-parser (sh)

Source: https://github.com/shapesecurity/shift-parser-js/blob/es2019/README.md

Demonstrates the command to install the shift-parser package using npm. This is the first step before using the parser in your project.

```sh
npm install shift-parser
```

--------------------------------

### Parse Script with shift-parser (Node.js)

Source: https://github.com/shapesecurity/shift-parser-js/blob/es2019/README.md

Illustrates how to use `parseScript` in a Node.js environment using the `require` syntax. This is a common pattern for server-side JavaScript.

```js
var parseScript = require("shift-parser").parseScript;
var scriptAST = parseScript("/* ECMAScript Script text */");
```

--------------------------------

### Parse with Location Info using shift-parser (js)

Source: https://github.com/shapesecurity/shift-parser-js/blob/es2019/README.md

Explains how to obtain location information (line, column, offset) and comments associated with parsed AST nodes. Requires an environment supporting `WeakMap`.

```js
let {parseScriptWithLocation, parseModuleWithLocation} = require("shift-parser");
let {tree, locations, comments} = parseScriptWithLocation("2 + 3 /* = 5 */");
let threeNode = tree.statements[0].expression.right;
locations.get(threeNode); // { start: { line: 1, column: 4, offset: 4 }, end: { line: 1, column: 5, offset: 5 } }
comments; // [ { text: ' = 5 ', type: 'MultiLine', start: { line: 1, column: 6, offset: 6 }, end: { line: 1, column: 15, offset: 15 } } ]
```

--------------------------------

### Parse ECMAScript with shift-parser (es6)

Source: https://github.com/shapesecurity/shift-parser-js/blob/es2019/README.md

Demonstrates the basic usage of the `parse` function from `shift-parser` to convert ECMAScript code into an Abstract Syntax Tree (AST). Requires the `shift-parser` package.

```es6
import parse from "shift-parser";
let ast = parse("/* ECMAScript program text */");
```

--------------------------------

### Parse Script/Module with shift-parser (es6)

Source: https://github.com/shapesecurity/shift-parser-js/blob/es2019/README.md

Shows how to import and use `parseScript` and `parseModule` for parsing specific ECMAScript constructs. Useful for differentiating between scripts and modules.

```es6
import {parseScript, parseModule} from "shift-parser";
let scriptAST = parseScript("/* ECMAScript Script text */");
let moduleAST = parseModule("/* ECMAScript Module text */");
```

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