What is the best way to eliminate all text that appears after the final appearance of a character in JavaScript?

Suppose we have a specific string that looks like this:

"A - B - C asdas K - A,B,C"

Assume the character delimiter is "-"

The goal is to extract everything before the last occurrence of "-", which in this case would be "A - B - C asdas K ".

An attempted solution involved using the following code snippet:

str = str.split(":").pop();

Is there an alternative method to achieve this task?

Answer №1

If you want to achieve a similar result, you could try the following approach:

let sentence = "A - B - C asdas K - A,B,C";
console.log(sentence.substring(0, sentence.lastIndexOf("-")));

In this scenario, you are locating the last occurrence of the character '-' and then extracting the substring from position 0 to that index.

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