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Why you should care

[/vc_column_text][vc_column_text]The logical OR operator (||) will not work in a switch case as one might think, only the first argument will be considered at execution time.[/vc_column_text][vc_empty_space][/vc_column_inner][/vc_row_inner][vc_empty_space height=”12px”][vc_empty_space][vc_separator][vc_column_text]

How we detect

[/vc_column_text][vc_column_text]CAST Highlight counts one occurrence each time a case argument is implementing unexpected logical ||.

Bad Code 

switch (x) {
case 1 || 2: // Noncompliant; only '1' is handled
doSomething(x);
break;
case 3:
doAnotherThing(x);
break;
default:
console.log("Boom!"); // this happens when x is 2
}

Good Code 

switch (x) {
case 1:
case 2:
doSomething(x);
break;
case 3:
doAnotherThing(x);
break;
default:
console.log("Boom!");
}

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References

[/vc_column_text][vc_column_text]https://rules.sonarsource.com/typescript/RSPEC-3616[/vc_column_text][vc_empty_space][vc_row_inner][vc_column_inner][vc_single_image image=”5362″ img_size=”full”][vc_column_text]

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