Eslint: Avoid relying on unsafe == and != js behavior (#30078)

Co-authored-by: Samuel Rigaud <srigaud@duodisplay.com>

.eslintrc.json

@@ -73,6 +73,9 @@
         "requireReturnDescription": false,
         "requireParamType": true
       }
+    ],
+    "eqeqeq": [
+      "error"
     ]
   }
 }

src/nodes/accessors/InstanceNode.js

@@ -120,13 +120,13 @@ class InstanceNode extends Node {
 
 	update( /*frame*/ ) {
 
-		if ( this.instanceMatrix.usage !== DynamicDrawUsage && this.buffer != null && this.instanceMatrix.version !== this.buffer.version ) {
+		if ( this.instanceMatrix.usage !== DynamicDrawUsage && this.buffer !== null && this.instanceMatrix.version !== this.buffer.version ) {
 
 			this.buffer.version = this.instanceMatrix.version;
 
 		}
 
-		if ( this.instanceColor && this.instanceColor.usage !== DynamicDrawUsage && this.bufferColor != null && this.instanceColor.version !== this.bufferColor.version ) {
+		if ( this.instanceColor && this.instanceColor.usage !== DynamicDrawUsage && this.bufferColor !== null && this.instanceColor.version !== this.bufferColor.version ) {
 
 			this.bufferColor.version = this.instanceColor.version;
 

src/nodes/functions/PhysicalLightingModel.js

@@ -73,7 +73,7 @@ const viewportFrontSideTexture = /*@__PURE__*/ viewportMipTexture();
 
 const getTransmissionSample = /*@__PURE__*/ Fn( ( [ fragCoord, roughness, ior ], { material } ) => {
 
-	const vTexture = material.side == BackSide ? viewportBackSideTexture : viewportFrontSideTexture;
+	const vTexture = material.side === BackSide ? viewportBackSideTexture : viewportFrontSideTexture;
 
 	const transmissionSample = vTexture.sample( fragCoord );
 	//const transmissionSample = viewportMipTexture( fragCoord );

src/renderers/webgpu/utils/WebGPUAttributeUtils.js

@@ -269,7 +269,7 @@ class WebGPUAttributeUtils {
 
 		let format;
 
-		if ( itemSize == 1 ) {
+		if ( itemSize === 1 ) {
 
 			format = typeArraysToVertexFormatPrefixForItemSize1.get( ArrayType );
 

src/renderers/webxr/WebXRDepthSensing.js

@@ -52,7 +52,7 @@ class WebXRDepthSensing {
 			const texProps = renderer.properties.get( texture );
 			texProps.__webglTexture = depthData.texture;
 
-			if ( ( depthData.depthNear != renderState.depthNear ) || ( depthData.depthFar != renderState.depthFar ) ) {
+			if ( ( depthData.depthNear !== renderState.depthNear ) || ( depthData.depthFar !== renderState.depthFar ) ) {
 
 				this.depthNear = depthData.depthNear;
 				this.depthFar = depthData.depthFar;