I am faced with a complex array
The array looks like this:
let arr = [[2, "OR", 22, 22, "OR", 22, 20], [300, "OR", 22, 300, "OR", 22, 22, "OR", 1], [1212, 2, "OR", 1]]
My goal is to extract and sum up all the numbers between "OR"
For instance, the modified array should be as follows:
[[2,"OR",44, "OR", 42],[300, "OR", 322, "OR", 42, "OR", 1], [1214, "OR, 1]]
I have been pondering over this for several days now, but haven't found a solution yet.
To efficiently handle this scenario, you can utilize the .reduce() method to determine whether to combine the current value with the previous one based on the presence of "OR". Since the data consists of an array of arrays, you will need to apply this logic to each sub-array using .map():
let arr = [[2, "OR", 22, 22, "OR", 22, 20], [300, "OR", 22, 300, "OR", 22, 22, "OR", 1], [1212, 2, "OR", 1]];
let res = arr.map(sub =>
sub.reduce((acc, val, i) => {
if (!i || [val, sub[i-1]].includes("OR")) acc.push(val);
else acc[acc.length-1] += val;
return acc;
}, [])
);
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