underscore mixins via interfascist
npm install mixism
You can add mixins to underscore for objects implementing specific interfaces via interfascist.
var Mixism = require( 'mixism' );
var Interfascist = require( 'interfascist' );
var geometryInterfaces = {
Point: {
x: 'Number',
y: 'Number'
},
Line: {
start: 'Point',
end: 'Point'
}
};
var validator = new Interfascist( geometryInterfaces );
var mixism = new Mixism( validator );
var _ = mixism.underscore;
var mixins = {
Point: {
square: function( point ) {
return {
x: point.x * point.x,
y: point.y * point.y
};
},
toString: function( point ) {
return 'Point(' + point.x + ',' + point.y + ')';
},
debug: function( point, message ) {
console.log( message + ': ' + _( point ).toString() );
},
},
Line: {
square: function( line ) {
return {
start: _( line.start ).square(),
end: _( line.end ).square()
}
},
toString: function( line ) {
return 'Line(' + _( line.start ).toString() + ',' + _( line.end ).toString() + ')';
},
debug: function( line, message ) {
console.log( message + ': ' + _( line ).toString() );
}
}
};
mixism.mixin( mixins );
var p = {
x: 5,
y: 3.5
};
var l = {
start: p,
end: {
x: 2.3,
y: -1
}
};
_( p ).debug( 'point' );
_( l ).debug( 'line' );
_( p ).chain().square().debug( 'point squared' );
_( l ).chain().square().debug( 'line squared' );
/*
point: Point(5,3.5)
line: Line(Point(5,3.5),Point(2.3,-1))
point squared: Point(25,12.25)
line squared: Line(Point(25,12.25),Point(5.289999999999999,1))
*/Lets you apply your mixins only to the appropriate objects.
Run with mocha from the root of mixism
npm install -g mocha
mocha
MIT