Hello if I have a string that is like
"[[{abc}, {abc}, {abc}]]....blah".
How can I get it to just be
"[{abc}, {abc}, {abc}]"
I want to start with the first "[" and end with the last "]" I tried substring but it only works if the string length never changes.
var newString = oldstring.substring(1) //this starts at the second "[" but how to continue till the last "]"?
You can get the expected string using startIndex as 1 and endIndexas str.length - 1
const str = "[[{abc}, {abc}, {abc}]]";
const newString = str.substring(1, str.length - 1);
console.log(newString);If you are looking to get the string after the very first [ and before the last ], then you can do as:
const str = "[[{abc}, {abc}, {abc}]]";
const strArr = str.split("");
const newString = str.substring(
strArr.indexOf("[") + 1,
strArr.lastIndexOf("]")
);
console.log(newString);Use String.slice:
const str = "[[{abc}, {abc}, {abc}]]";
const result = str.slice(1, -1);
console.log(result)