Javascript to edit json file

Question

I've got a .json file that looks like this:

[
    [
        1513814400000,
        0.8433
    ]
]

Now, my question is this: I need to modify every 2nd value in this file, i.e:

0.8433 -> 8.433

I already wrote a javascript that loads the file using jQuery, however I'm not sure how I can go through the file and edit these values. The manipulation is always the same, for example:

new value = old value * 10

Any tips on how I could do this?

Can do this with multiple different loop approaches. A for loop, Array#forEach, Array#map etc — charlietfl
– charlietfl, Commented Mar 18, 2018 at 13:47

Abd0m1nals · Accepted Answer · 2018-03-18 13:49:20Z

1

Lets say:

var array = [[1,2], [2,3],....[n,m]];

Then you can do:

array = array.map(element => {
  if(element[1]) element[1] = element[1] * 10;
  return element;
});

The result will be:

array = [[1,20], [2,30],....[n,m*10]];

answered Mar 18, 2018 at 13:49

Abd0m1nals

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