min, max, extent exhibit unexpected behavior for arrays of integers of differing numbers of digits about d3-array HOT 1 CLOSED

From the README, emphasis added:

Unlike the built-in Math.min, this method ignores undefined, null and NaN values; this is useful for ignoring missing data. In addition, elements are compared using natural order rather than numeric order. For example, the minimum of the strings [“20”, “3”] is “20”, while the minimum of the numbers [20, 3] is 3.

By default d3.tsv will return strings for all fields which is probably not what you want. If your TSV file is appropriately formatted, you may be able to use d3.autoType to convert your strings to numbers. Otherwise you will need to write your own row conversion function to coerce the data to the desired type.

from d3-array.