TwitchBot/node_modules/jade/node_modules/constantinople/README.md

# constantinople

Determine whether a JavaScript expression evaluates to a constant (using UglifyJS).  Here it is assumed to be safe to underestimate how constant something is.

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## Installation

    npm install constantinople

## Usage

```js
var isConstant = require('constantinople')

if (isConstant('"foo" + 5')) {
  console.dir(isConstant.toConstant('"foo" + 5'))
}
```

## API

### isConstant(src)

Returns `true` if `src` evaluates to a constant, `false` otherwise.  It will also return `false` if there is a syntax error, which makes it safe to use on potentially ES6 code.

### toConstant(src)

Returns the value resulting from evaluating `src`.  This method throws an error if the expression is not constant.  e.g. `toConstant("Math.random()")` would throw an error.

## License

  MIT