zikojs tips : mapfun

ZAKARIA ELALAOUI — Sat, 24 Feb 2024 23:27:21 +0000

📝 Javascript provides a built-in Math module with various functions.

⚠️However, there is room for improvement in terms of efficiency. For instance, the Math.sqrt(x) function can calculate the square root of a number x, but it has limitations such as the inability to accept multiple parameters and the inability to map the function to different data types like Arrays and Objects.

💡 In zikojs, I have addressed these limitations, providing a more versatile and efficient solution.

📋 Example :

zikojs	Vanilla js Equivalent
`sqrt(9)`	`sqrt(9)`
`sqrt(4,9,16)`	`[Math.sqrt(4),Math.sqrt(9),Math.sqrt(16)]`
`sqrt([4,9,16])`	`[Math.sqrt(4),Math.sqrt(9),Math.sqrt(16)]`
`sqrt([4,9],16)`	`[[Math.sqrt(4),Math.sqrt(9)],Math.sqrt(16)]`
`sqrt({x:4,y:9})`	`{x:sqrt(4),sqrt(9)}`

📢 Generally, zikojs allows you to input an infinite number of parameters, including deep arrays, objects, Maps, Sets, and more. The return value retains the input structure and calculates the result for each element accordingly.

📋 For Example :

sqrt({
    a:1,
    b:2,
    c:[3,4],
    d:[[
        [5,6]
        ]],
    e:{
        f:[
            {g:7}
            ]
    },
    h:new Map([["i",8],["j",9]]),
    k:{
        l:{
            m:new Set([10,11])
        },
        n:[12]
    }
})

This would return :

{
    a:sqrt(1),
    b:sqrt(2),
    c:[sqrt(3),sqrt(4)],
    d:[[
        [sqrt(5),sqrt(6)]
        ]],
    e:{
        f:[
            {g:sqrt(7)}
            ]
    },
    h:new Map([["i",sqrt(8)],["j",sqrt(9)]]),
    k:{
        l:{
            m:new Set([sqrt(10),sqrt(11)])
        },
        n:[sqrt(12)]
    }
}

💡 You can apply this approach to build your custom function ;

 import {mapfun} from "ziko";
 const parabolic_func=(a,b,c,x)=>a*(x**2)+b*x+c;
 const parabol=(a,b,c,...X)=>mapfun(n=>parabolic_func(a,b,c,n),...X)
 const a=-1.5,b=2,c=3;
 X0=[0,1,2,3];
 X1={x10:0,x11:1,x12:2,x13:3}
 console.log(parabol(a,b,c,X0));
 // [3,3,1,3]
 console.log(parabol(a,b,c,X1));
 // {x10: 3,x11: 3,x12: 1,x13: -3}
 console.log(parabol(a,b,c,X0,X1))
 /*
 [
    [3,3,1,3],
    {x10: 3,x11: 3,x12: 1,x13: -3}
    ]
 */

Or you can use the currying syntaxe :

 import {mapfun} from "ziko";
 const parabolic_func=(a,b,c,x)=>a*(x**2)+b*x+c;
 const map_parabolic_func=(a,b,c)=>(...X)=>mapfun(n=>parabolic_func(a,b,c,n),...X);
 const a=-1.5,b=2,c=3;
 const X=[0,1,2,3];
 console.log(parabolic_func(a,b,c)(X));
 // [3,3,1,3]

If you find the mapfun utility particularly useful and wish to use it independently, I have created a standalone micro package named mapfun. This micro package contains only the mapfun functions, allowing you to integrate it seamlessly into your projects without the need for the entire zikojs library.

For more information and to explore the mapfun micro package, visit mapfun on GitHub .

You may not necessarily rely on the mapfun utility every time, as ZikoJS offers a variety of built-in mathematical functions that built on the top of mapfun and the Math module in javascript .

Here you will find the built in Mathematic functions in zikojs

abs(...x) : Calculate the absolute value of the arguments (...X)
sqrt(...x)
pow(x,n)
sqrtn(x,n)
e(...x)
ln(...x)
cos(...x)
sin(...x)
tan(...x)
sinc(...x)
acos(...x)
asin(...x)
atan(...x)
cosh(...x)
sinh(...x)
acosh(...x)
asinh(...x)
atanh(...x)
cot(...x)
sec(...x)
csc(...x)
acot(...x)
coth(...x)
acosh(...x)
asinh(...x)
atanh(...x)
atan2(x,y,?rad)
hypot(...x)
min(...x)
max(...x)
sign(...x)
sig(...x)
fact(...x)
round(...x)
floor(...x)
ceil(...x)

Power Monitor Library

ZAKARIA ELALAOUI — Mon, 17 Apr 2023 10:51:44 +0000

A power monitor library for arduino and alternatives written in c++ , designed to measure the electrical characteristics of AC circuits such as voltage, current, power, reactive power, and power factor..

In the example given I didn't use voltage and current sensors and I have generated two arrays of I and V to check the results and compare them with the theorical ones

so the principe is to give it instantaneous values of current and voltage and it will mesure

Ieff Effective Value of current
Veff Effective Value of voltage
Imoy Mean Value of current
Vmoy Mean Value of voltage
P Active Power
Q Reactive Power
S Apparent Power
pf Power factor
Req The equivalent resistance of the circuit
Xeq The equivalent reactiance of the circuit
Zeq The equivalent impedance of the circuit

https://github.com/zakarialaoui10/PowerMonitor

DEV Community: ZAKARIA ELALAOUI

zikojs tips : mapfun

Power Monitor Library