How much does it cost to fix a JavaScript bug on my store?

Most single JavaScript bugs are fixed for $99 (Quick Fix, about 4 hours at $25/hr) when the error is clearly reproducible. A batch of errors, or one deep root cause like a RequireJS or Alpine conflict plus regression tests, runs $499 (Bug-Fix Sprint, ~20h @ $25/hr). Production-down emergencies use a custom on-call rate, with a $2,499 stabilization sprint (~100h @ $25/hr) for full storefront hardening. You get a fixed quote before any work starts.