---@meta table.clear

---@version JIT
---
---This clears all keys and values from a table, but preserves the allocated array/hash sizes. This is useful when a table, which is linked from multiple places, needs to be cleared and/or when recycling a table for use by the same context. This avoids managing backlinks, saves an allocation and the overhead of incremental array/hash part growth. The function needs to be required before use.
---```lua
---    require("table.clear").
---```
---Please note this function is meant for very specific situations. In most cases it's better to replace the (usually single) link with a new table and let the GC do its work.
---
---
---[查看文档](command:extension.lua.doc?["en-us/51/manual.html/pdf-table.clear"])
---
---@param tab table
local function clear(tab) end

return clear