lua_len

lua_len[-0, +1, e]

void lua_len (lua_State *L, int index);

Returns the length of the value at the given index. It is equivalent to the '#' operator in Lua (see §3.4.7) and may trigger a metamethod for the "length" event (see §2.4). The result is pushed on the stack.

Links:

https://www.lua.org/manual/5.3/manual.html#lua_len

doc_lua

2017-02-21 04:13:37

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