For all Database purposes instant3Dhub relies on the use of PostgreSQL.
instant3Dhub deploys a PostgresSQL instance within its containers. The use of external databases is explained `here <./INSTALL_EXT_POSTGRES_GUIDE.rst>`_.
Graphics Processing Unit
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
With GPUs on the service components we can computationally support clients and allow model tracking services.
Currently we only support NVIDIA GPUs.
To install GPU support for k8s we recommend using the `NVIDIA GPU Operator <https://docs.nvidia.com/datacenter/cloud-native/gpu-operator/overview.html>`_.
Following the NVIDIA guide will allow an easy installation of a variety of GPUs.
Please check if the GPU of your choice is in the supported GPUs list.
It is our experience however that other reasonable recent consumer GPUs also work even if not listed.
We support GPUs with compose aswell, however we do not provide a GPU install guide.
# is [](https://travis-ci.org/sindresorhus/is)
> Type check values: `is.string('🦄') //=> true`
<img src="header.gif" width="182" align="right">
## Install
```
$ npm install @sindresorhus/is
```
## Usage
```js
const is = require('@sindresorhus/is');
is('🦄');
//=> 'string'
is(new Map());
//=> 'Map'
is.number(6);
//=> true
```
When using `is` together with TypeScript, [type guards](http://www.typescriptlang.org/docs/handbook/advanced-types.html#type-guards-and-differentiating-types) are being used to infer the correct type inside if-else statements.
throw new TypeError(`Expected 'padding' to be of type 'string' or 'number', got '${is(padding)}'.`);
}
padLeft('🦄', 3);
//=> ' 🦄'
padLeft('🦄', '🌈');
//=> '🌈🦄'
```
## API
### is(value)
Returns the type of `value`.
Primitives are lowercase and object types are camelcase.
Example:
- `'undefined'`
- `'null'`
- `'string'`
- `'symbol'`
- `'Array'`
- `'Function'`
- `'Object'`
Note: It will throw an error if you try to feed it object-wrapped primitives, as that's a bad practice. For example `new String('foo')`.
### is.{method}
All the below methods accept a value and returns a boolean for whether the value is of the desired type.
#### Primitives
##### .undefined(value)
##### .null(value)
##### .string(value)
##### .number(value)
##### .boolean(value)
##### .symbol(value)
#### Built-in types
##### .array(value)
##### .function(value)
##### .buffer(value)
##### .object(value)
Keep in mind that [functions are objects too](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions).
##### .numericString(value)
Returns `true` for a string that represents a number. For example, `'42'` and `'-8'`.
Note: `'NaN'` returns `false`, but `'Infinity'` and `'-Infinity'` return `true`.
##### .regExp(value)
##### .date(value)
##### .error(value)
##### .nativePromise(value)
##### .promise(value)
Returns `true` for any object with a `.then()` and `.catch()` method. Prefer this one over `.nativePromise()` as you usually want to allow userland promise implementations too.
##### .generator(value)
Returns `true` for any object that implements its own `.next()` and `.throw()` methods and has a function definition for `Symbol.iterator`.
##### .generatorFunction(value)
##### .asyncFunction(value)
Returns `true` for any `async` function that can be called with the `await` operator.
```js
is.asyncFunction(async () => {});
// => true
is.asyncFunction(() => {});
// => false
```
##### .boundFunction(value)
Returns `true` for any `bound` function.
```js
is.boundFunction(() => {});
// => true
is.boundFunction(function () {}.bind(null));
// => true
is.boundFunction(function () {});
// => false
```
##### .map(value)
##### .set(value)
##### .weakMap(value)
##### .weakSet(value)
#### Typed arrays
##### .int8Array(value)
##### .uint8Array(value)
##### .uint8ClampedArray(value)
##### .int16Array(value)
##### .uint16Array(value)
##### .int32Array(value)
##### .uint32Array(value)
##### .float32Array(value)
##### .float64Array(value)
#### Structured data
##### .arrayBuffer(value)
##### .sharedArrayBuffer(value)
##### .dataView(value)
#### Emptiness
##### .emptyString(value)
Returns `true` if the value is a `string` and the `.length` is 0.
##### .nonEmptyString(value)
Returns `true` if the value is a `string` and the `.length` is more than 0.
##### .emptyStringOrWhitespace(value)
Returns `true` if `is.emptyString(value)` or if it's a `string` that is all whitespace.
##### .emptyArray(value)
Returns `true` if the value is an `Array` and the `.length` is 0.
##### .nonEmptyArray(value)
Returns `true` if the value is an `Array` and the `.length` is more than 0.
##### .emptyObject(value)
Returns `true` if the value is an `Object` and `Object.keys(value).length` is 0.
Please note that `Object.keys` returns only own enumerable properties. Hence something like this can happen:
