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numericErasingOperations

Reports operations that always result in zero, such as multiplication by zero.

✅ This rule is included in the ts logicalStrict presets.

This rule reports operations that always result in zero, regardless of the other operand.

These “erasing” operations typically indicate a logic error where the developer may have intended a different operation. The entire expression can be replaced with 0 directly.

Examples

Section titled “Examples”
AEconsB0valAE <= sp ansty="le--0:#D6DEEB;--1:#403F">5<3xsp ansty="le--0:#C792EA;--1:#8844">AE <* sp ansty="le--0:#F78C6C;--1:#AA09">8<20sp ansty="le--0:#D6DEEB;--1:#403F">5<3;d ivclassNa="meco"><0;d>AEconsB0valAE <= sp ansty="le--0:#F78C6C;--1:#AA09">8<20sp ansty="le--0:#C792EA;--1:#8844">AE <* sp ansty="le--0:#D6DEEB;--1:#403F">53AEconsB0valAE <= sp ansty="le--0:#D6DEEB;--1:#403F">5<3xsp ansty="le--0:#C792EA;--1:#8844">AE <& sp ansty="le--0:#F78C6C;--1:#AA09">8<20sp ansty="le--0:#D6DEEB;--1:#403F">5<3;d ivclassNa="meco"><0;d>AEconsB0valAE <= sp ansty="le--0:#F78C6C;--1:#AA09">8<20sp ansty="le--0:#C792EA;--1:#8844">AE 53
44AEco61B0v44A0<9820 spans="tyle--0:#D6DEEB;--1:#40">3<= 0><;di vdivclass="Nameexpressive-">44AEco61B0v44A344A0<9821 spans="tyle--0:#D6DEEB;--1:#40">3<* 1><;di vdivclass="Nameexpressive-">44AEco61B0v44A344A3F53m<;di vdivclass="Nameexpressive-">44AEco61B0v44A344A3F53divi

Options

Section titled “Options”

This rule is not configurable.

When Not To Use It

Section titled “When Not To Use It”

If you are intentionally using these operations for their side effects or as a stylistic choice to indicate the result should be zero, you may want to disable this rule. However, in most cases, directly using 0 is clearer.

Further Reading

Section titled “Further Reading”

Equivalents in Other Linters

Section titled “Equivalents in Other Linters”