Looping through an array and summarizing properties

#1

repost from discord

hey guy hoping someone could help a coding noob such as myself figure this one out. I have and array of “ingredients”, each “ingredient” is itself any array with macronutrient values. id like to be able to loop through the array and add each macronutrient together for a total displayed at the bottom of my screen. any help would be greatly appreciated/hope i explained correctly.

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#2

Would something like this help.

Screenshot 2022-07-27 at 09.31.25
Screenshot 2022-07-27 at 09.31.251482×494 24.8 KB

The code in the function is:

var result = 0

for(var item of Inputs.Items) {
    result += parseFloat(item.Protein)
}

Outputs.Result = result

One tricky thing is that your values are actually strings (you can see that since they are listed in " " in the inspector). So you need the parseFloat function to convert them to numbers so you can add them up. (otherwise, the += would just concatenate the strings)

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#3

Thank you so much!

would you be able to show me what the code would be if they were numbers?
its some thing i should change anyway.

thanks again

#4

Same code, just remove the parseFloat(item.Protein) and replace with just item.Protein

1 Like