Sometimes, we may run into the ‘SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated’ when we’re developing JavaScript apps.
In this article, we’ll look at how to fix the ‘SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated’ when we’re developing JavaScript apps.
Fix the ‘SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated’ When Developing JavaScript Apps
To fix the ‘SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated’ when we’re developing JavaScript apps, we should make sure that we don’t use 0-prefixed numbers to add octal numbers in our JavaScript code.
For instance, we shouldn’t write code like:
03;
in our code.
Instead, we write:
0o3;
to add an octal number.
We should also use hex escape sequences instead of octal escape sequences:
'\xA9';
Conclusion
To fix the ‘SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated’ when we’re developing JavaScript apps, we should make sure that we don’t use 0-prefixed numbers to add octal numbers in our JavaScript code.
We should also use hex escape sequences instead of octal escape sequences.
