docs: added reference for JS Client (#1629)

* added reference for JS Client

* added reference for JS Client

* added reference for JS Client

docs/content/references/js-client/interfaces/internal.DateConstructor.md

@@ -0,0 +1,95 @@
+---
+displayed_sidebar: jsClientSidebar
+---
+
+# Interface: DateConstructor
+
+[internal](../modules/internal.md).DateConstructor
+
+## Callable
+
+### DateConstructor
+
+▸ **DateConstructor**(): `string`
+
+#### Returns
+
+`string`
+
+#### Defined in
+
+node_modules/typescript/lib/lib.es5.d.ts:906
+
+## Properties
+
+### prototype
+
+• `Readonly` **prototype**: [`Date`](../modules/internal.md#date)
+
+#### Defined in
+
+node_modules/typescript/lib/lib.es5.d.ts:907
+
+## Methods
+
+### UTC
+
+▸ **UTC**(`year`, `month`, `date?`, `hours?`, `minutes?`, `seconds?`, `ms?`): `number`
+
+Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `year` | `number` | The full year designation is required for cross-century date accuracy. If year is between 0 and 99 is used, then year is assumed to be 1900 + year. |
+| `month` | `number` | The month as a number between 0 and 11 (January to December). |
+| `date?` | `number` | The date as a number between 1 and 31. |
+| `hours?` | `number` | Must be supplied if minutes is supplied. A number from 0 to 23 (midnight to 11pm) that specifies the hour. |
+| `minutes?` | `number` | Must be supplied if seconds is supplied. A number from 0 to 59 that specifies the minutes. |
+| `seconds?` | `number` | Must be supplied if milliseconds is supplied. A number from 0 to 59 that specifies the seconds. |
+| `ms?` | `number` | A number from 0 to 999 that specifies the milliseconds. |
+
+#### Returns
+
+`number`
+
+#### Defined in
+
+node_modules/typescript/lib/lib.es5.d.ts:923
+
+___
+
+### now
+
+▸ **now**(): `number`
+
+#### Returns
+
+`number`
+
+#### Defined in
+
+node_modules/typescript/lib/lib.es5.d.ts:924
+
+___
+
+### parse
+
+▸ **parse**(`s`): `number`
+
+Parses a string containing a date, and returns the number of milliseconds between that date and midnight, January 1, 1970.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `s` | `string` | A date string |
+
+#### Returns
+
+`number`
+
+#### Defined in
+
+node_modules/typescript/lib/lib.es5.d.ts:912