RxJS Utils

> Utility library providing RxJS operators.

Installation

Run command: npm install --save @mjamsek/rxjs-utils

Documentation

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#### Assert type

assertType() asserts observable is of type T. Usage:

``typescript
observable$.pipe(
assertType(),
);
`

#### Assert void

assertVoid() asserts observable is of type void. Usage:

`typescript
observable$.pipe(
assertVoid(),
);
`

#### Assert non null

nonNull() asserts observable value is not null. Usage:

`typescript
observable$.pipe(
nonNull(),
);
`

#### Type filter

ofTypeOnly() runs a type guard check on observable to filter values that are not of type T. Usage:

`typescript
function isString(x: unknown): x is string {
return typeof x === "string";
}

observable$.pipe(
ofTypeOnly(isString),
);
`

You can also create reusable filters, by using createTypeFilter function:

`typescript
const enforceString = createTypeFilter(isString);

observable$.pipe(
enforceString(),
);
`

#### Enforce type

enforceType() runs a type guard check on observable to enforce it is of type T. Usage:

`typescript
function isString(x: unknown): x is string {
return typeof x === "string";
}

observable$.pipe(
enforceType(isString),
);
`

You can also create reusable enforcers, by using createTypeEnforcer function:

`typescript
const enforceString = createTypeEnforcer(isString);

observable$.pipe(
enforceString(),
);
``

Bugs & Features

Any issues, requests for a new feature, etc. can be filled using GitHub Issues.

License

MIT