SyntaxError: identifier starts immediately after numeric literal
The JavaScript exception "identifier starts immediately after numeric literal" occurs when an identifier started with a digit. Identifiers can only start with a letter, underscore (_), or dollar sign ($).
Message
SyntaxError: Invalid or unexpected token (V8-based)
SyntaxError: identifier starts immediately after numeric literal (Firefox)
SyntaxError: No identifiers allowed directly after numeric literal (Safari)
Error type
What went wrong?
The names of variables, called identifiers, conform to certain rules, which your code must adhere to!
A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($). They can't start with a digit! Only subsequent characters can be digits (0-9).
Examples
Variable names starting with numeric literals
Variable names can't start with numbers in JavaScript. The following fails:
const 1life = "foo";
// SyntaxError: identifier starts immediately after numeric literal
const foo = 1life;
// SyntaxError: identifier starts immediately after numeric literal
alert(1.foo);
// SyntaxError: identifier starts immediately after numeric literal
You will need to rename your variable to avoid the leading number.
const life1 = "foo";
const foo = life1;