I'm using app script
I have Return array from API by this code :
const price= jsonResponce.price.map(obj => [obj[0],obj[1]]);
Give me [[30.56, 1.014], [50.44, 1.019], [10.35, 1.081], [10.34, 1.115], [10.40, 2.006]]
Not this array can be has 1000 array or large
Now I want to sum all object in obj[0] by using this code :
I use to method to see the deference but nothing work
var first= [];
var second= 0;
price.forEach(function(obj){
first+= obj[0];
second+= obj[1];
});
Logger.log(first);
Logger.log(second);
But Give me result like that: first Logger.log(first);
30.5650.4410.3510.3410.40
second Logger.log(second); : this method add number 0 after any obj
01.01401.01901.08101.11502.006
Any idea for this problem
30.56+50.44+10.35+10.34+10.40 I need result as : 112.09
Your code works fine for me, after minimal corrections:
const price = [[30.56, 1.014], [50.44, 1.019], [10.35, 1.081], [10.34, 1.115], [10.40, 2.006]]
var first = 0; // <-- here
var second = 0;
price.forEach(obj => {
first += +obj[0]; // <-- here
second += +obj[1]; // <-- here
});
console.log(first); // --> 112.09
console.log(second); // --> 6.2349You can get four digits after dot this way:
var a = 1.23456789;
var b = 1234.56789;
var c = 16643.59000000003
const dot1000 = x => Math.round(x*10000)/10000;
console.log(dot1000(a));
console.log(dot1000(b));
console.log(dot1000(c));Another implementation (with zeros at the end)
var a = 1.23456789
var b = 1234.56789
var c = 16643.59000000003
const dot1000 = x => parseInt(x) + '.' + (x+.00001+'').split('.')[1].slice(0,4)
console.log(dot1000(a))
console.log(dot1000(b))
console.log(dot1000(c))Update
Modern JavaScript (ES2017) can add zeros this way:
console.log('123'.padEnd(5,'0')); // 12300https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd
numbersInArray = price.flat()
let sum = 0 numbersInArray.forEach( number => sum += number)
Using Array.prototype.reduce() method, this becomes very easy:
const result = arr.reduce((total, el)=> {
return total + el[0] + el[1] // el = [a, b]
}, 0)
console.log(result) /// 118.325
Let me know in the comments if this is what you want or you want any improvements