add thousands separators to numbers
I've finally figured out how to add thousands separators.
If there's a built in for this (like a `sprintf` parameters) I don't want to hear it. I just don't, ok?
That's it.
outputs:
It's ugly, yeah, but it works.
If there's a built in for this (like a `sprintf` parameters) I don't want to hear it. I just don't, ok?
def ts( st ) st = st.reverse r = "" max = if st[-1].chr == '-' st.size - 1 else st.size end if st.to_i == st.to_f 1.upto(st.size) {|i| r << st[i-1].chr ; r << ',' if i%3 == 0 and i < max} else start = nil 1.upto(st.size) {|i| r << st[i-1].chr start = 0 if r[-1].chr == '.' and not start if start r << ',' if start % 3 == 0 and start != 0 and i < max start += 1 end } end r.reverse end
That's it.
puts ts('100') puts ts('1') puts ts('1000') puts ts('1000000.01') puts ts('100046546510000.022435451') puts ts('-100') puts ts('-1') puts ts('-1000') puts ts('-1000000.01') puts ts('-100046546510000.022435451')
outputs:
100 1 1,000 1,000,000.01 100,046,546,510,000.022435451 -100 -1 -1,000 -1,000,000.01 -100,046,546,510,000.022435451
It's ugly, yeah, but it works.
