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    @rxjs-ninja/rxjs-boolean
    TypeScript icon, indicating that this package has built-in type declarations

    4.0.2 • Public • Published

    RxJS Ninja - Booleans

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    rxjs-boolean

    Website | API Documentation | Changelog

    @rxjs-ninja/rxjs-boolean provides operators for querying, filtering and modifying boolean values, and Observable for generating boolean emitters.

    Function and Operator categories

    Create

    Functions and Operators for creating Observable boolean values

    const numbers = [0, 1, 0, 0, 1, 0, 1];
    const strings = ['RxJS', '', '', 'Ninja', 'TypeScript'];
    
    // Generate a boolean array from numbers
    fromBoolean(numbers).subscribe();
    // Output: `false, true, false, false, true, false, true`
    
    // Generate a boolean array from numbers
    fromBoolean(strings).subscribe();
    // Output: `true, false, false, true, true`

    Filter

    Operators for filtering Observable sources for truthy values

    const strings$ = from(['RxJS', '', '', 'Ninja', 'TypeScript', '', 'Angular']);
    
    // Get the first truthy value
    strings$.pipe(firstTruthy()).subscribe();
    // Output: `RxJS`
    
    // Get the first truthy value that is over length of 6
    strings$.pipe(firstTruthy((v) => v.length > 5)).subscribe();
    // Output: `TypeScript`
    
    // Get the last truthy value
    strings$.pipe(lastTruthy()).subscribe();
    // Output: `Angular`
    
    // Get the last truthy value of less than 5 characters
    strings$.pipe(lastTruthy((v) => v.length < 5)).subscribe();
    // Output: `RxJS`

    Modify

    Operators for modifying boolean values

    const source$ = from([false, true, true, false]);
    
    // Flip the boolean value
    source$.pipe(flip()).subscribe();
    // Output: `true, false, false, true`

    Validation

    Operators that provide boolean output based on checks against source values

    const input = ['4485275742308327', '1111222233334444', '111133332224444'];
    from(input).pipe(luhnCheck()).subscribe();
    // Output: `[true, true, false]`

    Install

    npm i @rxjs-ninja/rxjs-boolean

    DownloadsWeekly Downloads

    13

    Version

    4.0.2

    License

    MIT

    Unpacked Size

    49.7 kB

    Total Files

    20

    Homepage

    rxjs.ninja

    Last publish

    Collaborators

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