unnecessaryBinds

Reports unnecessary .bind() calls.

✅ This rule is included in the ts logical presets.

Using .bind() on a function that doesn’t use this is unnecessary. Additionally, using .bind() on arrow functions has no effect since arrow functions have lexical this binding.

Examples

Functions Without this

❌ Incorre

AEconsB0handlAE = functio11<()sp ansty="le--0:#C792EA;--1:#8844">AE< {d ivclassNa="meec-li">nt< sp ansty="le--0:#D6DEEB;--1:#403F">53consoAB0l5<3(sp ansty="le--0:#D9F5DD;--1:#1111">1<1"sp ansty="le--0:#ECC48D;--1:#984E">4Dhel1<1"sp ansty="le--0:#D6DEEB;--1:#403F">5<3)sp ansty="le--0:#C792EA;--1:#8844">AAE<}.sp ansty="le--0:#82AAFF;--1:#3B61">B0bi5<3(sp ansty="le--0:#7FDBCA;--1:#096E">72th53<);d ivclassNa="meco"><);d>

44AEco61B0han44AE = funct11<11() spans="tyle--0:#C792EA;--1:#88">44de3F53con4<4AE. spans="tyle--0:#82AAFF;--1:#3B">61B<0log spans="tyle--0:#D6DEEB;--1:#40">31<111" spans="tyle--0:#ECC48D;--1:#98">4E4Dh1<111" spans="tyle--0:#D6DEEB;--1:#40">34<4AE ;divclass="Nameec-">4<4AE} spans="tyle--0:#D6DEEB;--1:#40">3<;}>

Arrow Functions

❌ Incorre

AEconsB0callbaAE <= sp ansty="le--0:#D6DEEB;--1:#403F">5<3(sp ansty="le--0:#D9F5DD;--1:#1111">11<()sp ansty="le--0:#C792EA;--1:#8844">AE =>< {d ivclassNa="meec-li">nt< sp ansty="le--0:#7FDBCA;--1:#096E">72thAB0proce53<()sp ansty="le--0:#C792EA;--1:#8844">AA5<3)sp ansty="le--0:#C792EA;--1:#8844">AB0bi53(context<);d ivclassNa="meco"><);d>

44AEco61B0call44A11<11() spans="tyle--0:#C792EA;--1:#88">44AE <=> {divclass="Nameec-">de6E724<4AE. spans="tyle--0:#82AAFF;--1:#3B">61B0pro3F<53() spans="tyle--0:#C792EA;--1:#88">4 ><4AE ;divclass="Nameec-">4<4AE} spans="tyle--0:#D6DEEB;--1:#40">3<;}>

Options

This rule is not configurable.

When Not To Use It

If you use .bind() with additional arguments to create partially applied functions, this rule should not flag those cases.

Further Reading

• MDN: Function.prototype.bind()
• Arrow Functions and this

Equivalents in Other Linters

• ESLint: no-extra-bind
• Oxlint: eslint/no-extra-bind