Adding backslash to string

Question

var myString = '\\folder\folder1\folder2\folder3\anotherFolder\filname.pdf';

The goal is to get

myString = '\\\\folder\\folder1\\folder2\\folder3\\anotherFolder';

My first idea was to split on each backslash, do a loop to create the new string. I got this result for the split

myString.split('\\'); ["", "folderolder1older2older3anotherFolderilname.pdf"]

The first string has a single backslash in it - at the beginning. \f is just an escaped character f. — VLAZ
– VLAZ, Commented Sep 27, 2022 at 13:40
There is only on backslash in the string literal. \f is a single character. '\f'.length === 1 and '\f'.charCodeAt(0) it returns 12, the Form Feed character: unicode-table.com/en/000C — adiga
– adiga, Commented Sep 27, 2022 at 13:41

Chris · Accepted Answer · 2022-09-27 15:11:17Z

0

var myString = 
String.raw`\\folder\folder1\folder2\folder3\anotherFolder\filname.pdf`;
var mySplit = myString.split('\\');
var result;

for (var i =0; i<(mySplit.length-1);i++){
    result = result +'\\'+mySplit[i];

}

result = result.replace('undefined','\\');

Result is

"\\\\folder\folder1\folder2\folder3\anotherFolder"

answered Sep 27, 2022 at 15:11

Chris

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