I am trying to unscape a string (get the original \t character).
I have been trying all this:
var s = "my \t string";
var t = "\\t"; // Backslashes are escaped because this is rendered on an <input>
// How do we split the string?
s.split(t); // ["my string"]
s.split(t.substring(1)); // Not working becuase t.substring(1) is just 't'
s.split(t.replace(/\\\\/g, "\\")); // ["my string"]
// Expected result would be:
s.split('\t'); // ["my ", " string"]
// Using JSON.parse works
s.split(JSON.parse('"' + t + '"')); // ["my ", " string"]
Is JSON.parse the only way of doing it?
JSON.parse is not the only way. You can also use RegExp, as in regex notation a TAB character can be represented as the character pair \t, which is what you have in the variable t:
var s = "my \t string"; // A string containing a TAB character
var t = "\\t"; // A backslash followed by "t"
const parts = s.split(RegExp(t));
console.log(parts); // ["my ", " string"]