some coding practise

const a = [2,3,6]
var b = a.map(function function_name(argument) {
return argument*argument
})
console.log(b)

var b = a.map( ops = (va) => {return va*va})
console.log(b)

// calculate simple interest
// r = 10% t = 2year
// si = prt/100

const p = [100,200,300,400,500]

const d = p.map(calculateSi)
console.log(d)

function calculateSi(value){
let si = value102/100;
return si
}

let arra = [100,300,500,500,200,700]
const doc = arra.map(function(value){return 102value/100})
console.log(doc)
const docu = arra.map((value)=>{return 102value/100})

const arraa = [4,3,6,9]
const red = arraa.reduce(reDu)
console.log(red)

function reDu(tota,num){
return tota + num
}

const even = [14,16,18,21,45,3,12,64,93,21]

const odd = even.map(function(k){if (k%2==0){
return 'even'
}
else{
return 'odd'
}

})
console.log(odd)

const oddy = even.map((n)=>{if(n%2==0){return 'even'}else{return 'odd'}})
console.log(oddy)