How DynamicNode capitalize the first letter, when input?

[YanTree]

Slot 2 3, the DynamicNode should return a string when input, but capitalize the first letter.

I tried blow code, but it's not work for me, can anyone could give me some advice?

s(
  "sample",
  fmt("half4 {} = SAMPLE_TEXTURE2D(_{}, sampler_{}, input.uv.xy);", {
    i(1, "baseMap"),
    d(2, function(args)
      return sn(nil, {
        i(1, l(l._1:sub(1, 1):upper()..l._1:sub(2, -1), args[1]))
      })
      end,
    {1}),
    d(3, function(args)
      return sn(nil, {
        i(1, l(l._1:sub(1, 1):upper()..l._1:sub(2, -1), args[1]))
      })
      end,
    {1}),
})),

[L3MON4D3]

Mhhh you don't need the l(...) inside the i(...), try return i(1, args[1][1]:sub(1,1):upper .. args[1][1]:sub(2,-1)) (or, replace the whole d(2, ...) with dl(2, l._1:sub(1, 1):upper()..l._1:sub(2, -1), {1}), something like that should work too)

[YanTree]

wow! thx for reply, this problem has troubled me for a whole day.

1. dl(2, l._1:sub(1, 1):upper()..l._1:sub(2, -1), {1}) it works ✅
2. return i(1, args[1][1]:sub(1,1):upper .. args[1][1]:sub(2,-1)) will show one diagnostics with 'Missed symbol '('.' ⭕

So finally code as below:

s(
  "sample",
  fmt("half4 {} = SAMPLE_TEXTURE2D(_{}, sampler_{}, input.uv.xy);", {
    i(1, "baseMap"),
    dl(2, l._1:sub(1, 1):upper()..l._1:sub(2, -1), {1}),
    dl(3, l._1:sub(1, 1):upper()..l._1:sub(2, -1), {1}),
})),

[L3MON4D3]

Ah, 2. is just missing the parantheses after the upper.
But 1. is fancier anyway :D
Glad I could help :)