flattening multi dimensional arrays in JavaScript
JavaScript
ðŸ¤– Code Explanation
The code above is using the reduce method on the array named arr. The reduce method takes in a callback function with two parameters, a and b. In this case, the callback function is concatenating b onto a. The empty array at the end of the reduce method is the starting value for the a parameter. The result of this code is the flat array, which contains all of the elements of the original array, arr, but in a single dimension.
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Calculate the income tax for an income of $70k by adhering to the rules below:
First $10k: 0Â =Â 0
Next $10k: 10Â =Â 10
Following $10k: 20Â =Â 20
Remaining amount: 30
Calculate the income tax for an income of $70k by adhering to the rules below:
First $10k: 0Â =Â 0
Next $10k: 10Â =Â 10
Following $10k: 20Â =Â 20
Remaining amount: 30
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