numer do pieniędzy JavaScript
(12345.67).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); // 12,345.67
Real Reindeer
(12345.67).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); // 12,345.67const arrSum = arr => arr.reduce((a,b) => a + b, 0)console.log(
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
[].reduce((a, b) => a + b, 0)
)const sum = arr => arr.reduce((a, b) => a + b, 0);arr.reduce((a, b) => a + b)function getArraySum(a){
var total=0;
for(var i in a) {
total += a[i];
}
return total;
}
var payChecks = [123,155,134, 205, 105];
var weeklyPay= getArraySum(payChecks); //sums up to 722