Function should not have duplicate parameter names

• DUPLICATE_PARAM
• Error
• Medium
• No tags

This rule applies when the function has duplicate parameter names.

If a function has duplicate parameter names, the later parameters shadow the earlier ones and the values passed at the earlier positions become inaccessible.

Noncompliant Code Example

function foo(a, a) { // DUPLICATE_PARAM alarm
    return a + b;
}

Compliant Code Example

function foo(a, b) {
    return a + b;
}

Version

This rule was introduced in DeepScan 1.19.0.

See

• Function