Functional Programming in JavaScript (Functional Programming with JavaScript and React Book 4) by Salcescu Cristian

Author:Salcescu, Cristian [Salcescu, Cristian]
Language: eng
Format: epub, pdf
Published: 2020-08-07T16:00:00+00:00

function M(value){

function map(f){

const newValue = f(value);

return M(newValue);

}

function bind(f){

const newValue = f(value);

return newValue;

}

return {

map,

bind

}

}

function unit(value){

return M(value);

}

return {

unit

}

})();

unit creates a new monad wrapping a value.

bind defines the flat map operation.

Here is how the monad can be created and used.

import M from './M';

function f(){

return M.unit(2)

}

M.unit(1).bind(f)

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