Javascript – Avoid Use Of Alert Function

Rule number #

SN-0114

Impact #

The alert function can be useful for debugging during development, but in production mode this kind of pop-up could expose sensitive information to attackers, and should never be displayed.

Remediation #

Remove all alert function calls from your code.

Time to fix #

5 min

Code examples #

Noncompliant code #

if(unexpectedCondition) { alert(“Unexpected Condition Is Happening”); }

Compliant code #

if(unexpectedCondition) { console.log(“Unexpected Condition Is Happening”); }