How can I delete one part of the string without deleting the same set of characters in another place-CodePudding

I'm trying to clean up a string (URL). I need that every time it contains ipfs://ipfs/ to replace it by a single ipfs/. The full string is ipfs://ipfs/QmR6xjBCn but it should be ipfs://QmR6xjBCn In some cases I get string that are already clean, in other cases I dont'.

CodePudding user response：

Use the replace() function. If the text is not in the string then it won't replace anything. So it only works when the double ipfs is there.

let str;
// example one
str = "ipfs://ipfs/QmR6xjBCn";
str = str.replace("ipfs://ipfs/","ipfs://");
console.log(str);

// example two, same code different url
str = "ipfs://SomethingRandom";
str = str.replace("ipfs://ipfs/","ipfs://");
console.log(str);

CodePudding user response：

if (fixedURL.includes('ipfs://ipfs')) {
  fixedURL2 = fixedURL.replace('ipfs://ipfs','ipfs://')

  obj.imageUrl = fixedURL2;
} else {

  obj.imageUrl = fixedURL;
}