trycatch

    If a function does not throw, return the function return value; otherwise, return y.

    Usage

    var trycatch = require( '@stdlib/utils/try-catch' );
    

    trycatch( x, y )

    If a function x does not throw, returns the return value of x; otherwise, returns y.

    function x1() {
        return 1.0;
    }
    
    var z = trycatch( x1, -1.0 );
    // returns 1.0
    
    function x2() {
        throw new Error( 'beep' );
    }
    
    z = trycatch( x2, -1.0 );
    // returns -1.0
    

    Examples

    var randu = require( '@stdlib/random/base/randu' );
    var trycatch = require( '@stdlib/utils/try-catch' );
    
    var z;
    var i;
    
    function x() {
        if ( randu() < 0.9 ) {
            throw new Error( 'BOOP' );
        }
        return 'BOOP';
    }
    
    for ( i = 0; i < 100; i++ ) {
        z = trycatch( x, 'beep' );
        console.log( z );
    }