Replace String in String
Replace String in String
blocks allow us to replace all instances of a specific substring found within some string with a third string. They have three inputs: "Original" is the main string, "ToReplace" is the substring that we are searching for within "Original", and "ReplaceText" is the string that we want to replace every instance of "ToReplace" with.
Replace String in String
blocks are commonly used to add some data that is acquired or calculated during runtime to some kind of message tempate, as we do here:
This produces:

In the example above, we use the string "{0}" as a sort of placeholder in our original string. We then search for "{0}" using our Replace String in String
block, and replace that string with whatever price is returned by the Get CoinGecko Coin
block.
Replace String in String
blocks to create an output message containing many pieces of data:
This produces:

This kind of technique would likely be used for any kind of bot that is supposed to output a bunch of stats about some coin or token when prompted.