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028-Currying-Function.js
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028-Currying-Function.js
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/*
Author : Jaydatt Patel
Currying Method Function:
currying is a functional programming technique that involves breaking down a function that takes multiple arguments into a series of functions that take one argument each. This creates a chain of functions, where each function returns another function until the final result is achieved.
*/
console.log('----------------1-------------------');
// Currying Method Function:
function add(a){
return function (b){
return function (c){
return (a+b+c);
}
}
}
console.log('add(1,2,3) :', add(1)(2)(3)); //parsing argument with inner function
var method = add('Method'); //parsing argument and return function
var methD = method('-'); //parsing argument and return function
console.log('methD(1) :', methD(1)); //parsing argument and return value
console.log('methD(2) :', methD(2)); //parsing argument and return value
console.log('----------------2-------------------');
// Currying Method Function:
function power(a){
return function (b){
return (b ** a);
}
}
console.log('power(3)(2):',power(3)(2));
var square = power(2);
console.log('square(2):', square(2));
console.log('square(3):', square(3));
var cube = power(3);
console.log('cube(2):', cube(2));
console.log('cube(3):', cube(3));
console.log('----------------3-------------------');
function pizzaPricing(size){
return function (topping){
return function(quantity){
let amount = 0;
if (size.toLowerCase() === 'large')
amount += 12;
if (size.toLowerCase() === 'medium')
amount += 10;
if (size.toLowerCase() === 'small')
amount += 8;
amount = (amount + (1.50 * topping.length)) * quantity;
return amount;
}
}
}
var pizza = pizzaPricing('large')(['bacon' , 'cheese']);
console.log(pizza(2));