Not many commands differ when used on another platform, but the function command is not many commands. Here's what it does and how to use it in Minecraft Bedrock Edition.

You’ll need a command block to make snowballs explosive in Minecraft Bedrock Edition. Start by entering the command, /give @s command_block, in the chat to obtain one.

As its name, you can obtain a command block through commands. Make sense, right? There are 2 commands you can type in the chat (press T or Enter) to get a command block: /give @s minecraft:command ...