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in this video well be looking at how we can replace one part of a string with another hello im phillip burton of filecats.cod.uk so weve got a string here hello there philip now suppose i wanted to change that to hello there john i can do that very easily but there are more complicated ways weve seen in a previous video how we can use substring to extract everything apart from my name and then we can put in my name but if i use the replace function so i need to have my initial string to start with i need to find something and i need something to place it with so there weve got my replace function so if i play that then we get hello there john now this is quite often used when you have a placeholder say the hash or pound sign so i can say we place the hash with john so suppose this was a huge number of rows and ive got lots of peoples names i could say hello there margaret hello there mildred and the rest of it right so lets see what else we can do well lets say i wanted to ge
