How can I replace all occurrences of a string?

Note: Don't use this in performance critical code.

As an alternative to regular expressions for a simple literal string, you could use

str = "Test abc test test abc test...".split("abc").join("");

The general pattern is

str.split(search).join(replacement)

This used to be faster in some cases than using replaceAll and a regular expression, but that doesn't seem to be the case anymore in modern browsers.

Benchmark: https://jsperf.com/replace-all-vs-split-join

Conclusion: If you have a performance critical use case (e.g processing hundreds of strings), use the Regexp method. But for most typical use cases, this is well worth not having to worry about special characters.