diff --git a/src/bindings/javascript/analyserequation.cpp b/src/bindings/javascript/analyserequation.cpp
index d7579751f8..c7a9daf695 100644
--- a/src/bindings/javascript/analyserequation.cpp
+++ b/src/bindings/javascript/analyserequation.cpp
@@ -45,9 +45,12 @@ EMSCRIPTEN_BINDINGS(libcellml_analyserequation)
         .function("nlaSiblings", &libcellml::AnalyserEquation::nlaSiblings)
         .function("nlaSibling", &libcellml::AnalyserEquation::nlaSibling)
         .function("isStateRateBased", &libcellml::AnalyserEquation::isStateRateBased)
-        .function("variableCount", &libcellml::AnalyserEquation::variableCount)
-        .function("variables", &libcellml::AnalyserEquation::variables)
-        .function("variable", &libcellml::AnalyserEquation::variable)
+        .function("computedConstantCount", &libcellml::AnalyserEquation::computedConstantCount)
+        .function("computedConstants", &libcellml::AnalyserEquation::computedConstants)
+        .function("computedConstant", &libcellml::AnalyserEquation::computedConstant)
+        .function("algebraicCount", &libcellml::AnalyserEquation::algebraicCount)
+        .function("algebraicVariables", select_overload<std::vector<libcellml::AnalyserVariablePtr>() const>(&libcellml::AnalyserEquation::algebraic))
+        .function("algebraicVariable", select_overload<libcellml::AnalyserVariablePtr(size_t) const>(&libcellml::AnalyserEquation::algebraic))
     ;
 
     EM_ASM(
diff --git a/src/bindings/javascript/analysermodel.cpp b/src/bindings/javascript/analysermodel.cpp
index 87a74085f5..3103e413a7 100644
--- a/src/bindings/javascript/analysermodel.cpp
+++ b/src/bindings/javascript/analysermodel.cpp
@@ -45,9 +45,15 @@ EMSCRIPTEN_BINDINGS(libcellml_analysermodel)
         .function("stateCount", &libcellml::AnalyserModel::stateCount)
         .function("states", &libcellml::AnalyserModel::states)
         .function("state", &libcellml::AnalyserModel::state)
-        .function("variableCount", &libcellml::AnalyserModel::variableCount)
-        .function("variables", &libcellml::AnalyserModel::variables)
-        .function("variable", &libcellml::AnalyserModel::variable)
+        .function("constantCount", &libcellml::AnalyserModel::constantCount)
+        .function("constants", &libcellml::AnalyserModel::constants)
+        .function("constant", &libcellml::AnalyserModel::constant)
+        .function("computedConstantCount", &libcellml::AnalyserModel::computedConstantCount)
+        .function("computedConstants", &libcellml::AnalyserModel::computedConstants)
+        .function("computedConstant", &libcellml::AnalyserModel::computedConstant)
+        .function("algebraicCount", &libcellml::AnalyserModel::algebraicCount)
+        .function("algebraicVariables", select_overload<std::vector<libcellml::AnalyserVariablePtr>() const>(&libcellml::AnalyserModel::algebraic))
+        .function("algebraicVariable", select_overload<libcellml::AnalyserVariablePtr(size_t) const>(&libcellml::AnalyserModel::algebraic))
         .function("equationCount", &libcellml::AnalyserModel::equationCount)
         .function("equations", &libcellml::AnalyserModel::equations)
         .function("equation", &libcellml::AnalyserModel::equation)
diff --git a/tests/bindings/javascript/analyserequation.test.js b/tests/bindings/javascript/analyserequation.test.js
index 4f1a5cc317..7619bdebdc 100644
--- a/tests/bindings/javascript/analyserequation.test.js
+++ b/tests/bindings/javascript/analyserequation.test.js
@@ -56,7 +56,7 @@ describe("Analyser Equation tests", () => {
         expect(eqn.dependencies().size()).toBe(0)
     });
     test('Checking Analyser Equation dependency.', () => {
-        expect(eqn.dependency(0)).toBe(null)
+        expect(eqn.dependency(0)).toBeNull()
     });
     test('Checking Analyser Equation nlaSystemIndex.', () => {
         expect(eqn.nlaSystemIndex()).toBe(4294967295)
@@ -68,16 +68,25 @@ describe("Analyser Equation tests", () => {
         expect(eqn.nlaSiblings().size()).toBe(0)
     });
     test('Checking Analyser Equation nlaSibling.', () => {
-        expect(eqn.nlaSibling(0)).toBe(null)
+        expect(eqn.nlaSibling(0)).toBeNull()
     });
-    test('Checking Analyser Equation variableCount.', () => {
-        expect(eqn.variableCount()).toBe(1)
+    test('Checking Analyser Equation computedConstantCount.', () => {
+        expect(eqn.computedConstantCount()).toBe(0)
     });
-    test('Checking Analyser Equation variables.', () => {
-        expect(eqn.variables().size()).toBe(1)
+    test('Checking Analyser Equation computedConstants.', () => {
+        expect(eqn.computedConstants().size()).toBe(0)
     });
-    test('Checking Analyser Equation variable.', () => {
-        expect(eqn.variable(0).variable().name()).toBe("x")
+    test('Checking Analyser Equation computedConstant.', () => {
+        expect(eqn.computedConstant(0)).toBeNull()
+    });
+    test('Checking Analyser Equation algebraicCount.', () => {
+        expect(eqn.algebraicCount()).toBe(1)
+    });
+    test('Checking Analyser Equation algebraicVariables.', () => {
+        expect(eqn.algebraicVariables().size()).toBe(1)
+    });
+    test('Checking Analyser Equation algebraicVariable.', () => {
+        expect(eqn.algebraicVariable(0).variable().name()).toBe("x")
     });
     test('Checking Analyser Equation AST.', () => {
         expect(eqn.ast().value()).toBe("")
diff --git a/tests/bindings/javascript/analysermodel.test.js b/tests/bindings/javascript/analysermodel.test.js
index a84ad5e3d2..c709d93684 100644
--- a/tests/bindings/javascript/analysermodel.test.js
+++ b/tests/bindings/javascript/analysermodel.test.js
@@ -61,10 +61,20 @@ describe("Analyser Model tests", () => {
         expect(am.states().size()).toBe(4)
         expect(am.state(2).variable().name()).toBe("m")
     });
-    test('Checking Analyser Model variables related API.', () => {
-        expect(am.variableCount()).toBe(18)
-        expect(am.variables().size()).toBe(18)
-        expect(am.variable(2).variable().name()).toBe("i_K")
+    test('Checking Analyser Model constants related API.', () => {
+        expect(am.constantCount()).toBe(0)
+        expect(am.constants().size()).toBe(0)
+        expect(am.constant(2)).toBeNull()
+    });
+    test('Checking Analyser Model computed constants related API.', () => {
+        expect(am.computedConstantCount()).toBe(0)
+        expect(am.computedConstants().size()).toBe(0)
+        expect(am.computedConstant(2)).toBeNull()
+    });
+    test('Checking Analyser Model algebraic variables related API.', () => {
+        expect(am.algebraicCount()).toBe(18)
+        expect(am.algebraicVariables().size()).toBe(18)
+        expect(am.algebraicVariable(2).variable().name()).toBe("i_K")
     });
     test('Checking Analyser Model need* API.', () => {
         expect(am.needEqFunction()).toBe(false)
@@ -93,6 +103,6 @@ describe("Analyser Model tests", () => {
         expect(am.needAcothFunction()).toBe(false)
     });
     test('Checking Analyser Model are equivalent variables.', () => {
-        expect(am.areEquivalentVariables(am.variable(2).variable(), am.variable(7).variable())).toBe(false)
+        expect(am.areEquivalentVariables(am.algebraicVariable(2).variable(), am.algebraicVariable(7).variable())).toBe(false)
     });
  })
diff --git a/tests/bindings/javascript/analyservariable.test.js b/tests/bindings/javascript/analyservariable.test.js
index 52b5ef7496..6aa1f4f8d1 100644
--- a/tests/bindings/javascript/analyservariable.test.js
+++ b/tests/bindings/javascript/analyservariable.test.js
@@ -37,35 +37,37 @@ describe("Analyser Variable tests", () => {
 
         am = a.model()
 
-        expect(am.variableCount()).toBe(18)
+        expect(am.constantCount()).toBe(0)
+        expect(am.computedConstantCount()).toBe(0)
+        expect(am.algebraicCount()).toBe(18)
     });
     test('Checking Analyser Variable type.', () => {
-        const av = am.variable(0)
+        const av = am.algebraicVariable(0)
         expect(av.type().value).toBe(libcellml.AnalyserVariable.Type.ALGEBRAIC.value)
         expect(libcellml.AnalyserVariable.typeAsString(av.type())).toBe("algebraic")
     });
     test('Checking Analyser Variable index.', () => {
-        const av = am.variable(7)
+        const av = am.algebraicVariable(7)
         expect(av.index()).toBe(7)
     });
     test('Checking Analyser Variable initialising variable.', () => {
-        const av = am.variable(15)
+        const av = am.algebraicVariable(15)
         expect(av.initialisingVariable().name()).toBe("g_K")
     });
     test('Checking Analyser Variable variable.', () => {
-        const av = am.variable(10)
+        const av = am.algebraicVariable(10)
         expect(av.variable().name()).toBe("alpha_m")
     });
     test('Checking Analyser Equation equationCount.', () => {
-        const av = am.variable(14)
+        const av = am.algebraicVariable(14)
         expect(av.equationCount()).toBe(1)
     });
     test('Checking Analyser Variable equations.', () => {
-        const av = am.variable(14)
+        const av = am.algebraicVariable(14)
         expect(av.equations().size()).toBe(1)
     });
     test('Checking Analyser Variable equation.', () => {
-        const av = am.variable(14)
+        const av = am.algebraicVariable(14)
         expect(av.equation(0).type().value).toBe(libcellml.AnalyserEquation.Type.VARIABLE_BASED_CONSTANT.value)
     });
  })
diff --git a/tests/bindings/javascript/generator.test.js b/tests/bindings/javascript/generator.test.js
index 0fd13e18a5..bd854e65f8 100644
--- a/tests/bindings/javascript/generator.test.js
+++ b/tests/bindings/javascript/generator.test.js
@@ -43,7 +43,7 @@ describe("Generator tests", () => {
 
         a.analyseModel(m)
 
-        expect(g.model()).toBe(null)
+        expect(g.model()).toBeNull()
 
         g.setModel(a.model())
 
@@ -62,10 +62,10 @@ describe("Generator tests", () => {
         g.setModel(a.model())
 
         const interface_lines = g.interfaceCode().split('\n')
-        expect(interface_lines.length).toBe(40)
+        expect(interface_lines.length).toBe(42)
 
         const implementation_lines = g.implementationCode().split('\n')
-        expect(implementation_lines.length).toBe(67)
+        expect(implementation_lines.length).toBe(69)
 
         const equation_line_1 = libcellml.Generator.equationCode(a.model().equation(0).ast())
         expect(equation_line_1.length).toBe(14)
diff --git a/tests/bindings/javascript/generatorprofile.test.js b/tests/bindings/javascript/generatorprofile.test.js
index be6ff9f397..7c5bd368e6 100644
--- a/tests/bindings/javascript/generatorprofile.test.js
+++ b/tests/bindings/javascript/generatorprofile.test.js
@@ -684,17 +684,41 @@ describe("GeneratorProfile tests", () => {
     x.setImplementationStateCountString("something")
     expect(x.implementationStateCountString()).toBe("something")
   });
-  test("Checking GeneratorProfile.interfaceVariableCountString.", () => {
+  test("Checking GeneratorProfile.interfaceConstantCountString.", () => {
     const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
 
-    x.setInterfaceVariableCountString("something")
-    expect(x.interfaceVariableCountString()).toBe("something")
+    x.setInterfaceConstantCountString("something")
+    expect(x.interfaceConstantCountString()).toBe("something")
   });
-  test("Checking GeneratorProfile.implementationVariableCountString.", () => {
+  test("Checking GeneratorProfile.implementationConstantCountString.", () => {
     const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
 
-    x.setImplementationVariableCountString("something")
-    expect(x.implementationVariableCountString()).toBe("something")
+    x.setImplementationConstantCountString("something")
+    expect(x.implementationConstantCountString()).toBe("something")
+  });
+  test("Checking GeneratorProfile.interfaceComputedConstantCountString.", () => {
+    const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
+
+    x.setInterfaceComputedConstantCountString("something")
+    expect(x.interfaceComputedConstantCountString()).toBe("something")
+  });
+  test("Checking GeneratorProfile.implementationComputedConstantCountString.", () => {
+    const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
+
+    x.setImplementationComputedConstantCountString("something")
+    expect(x.implementationComputedConstantCountString()).toBe("something")
+  });
+  test("Checking GeneratorProfile.interfaceAlgebraicCountString.", () => {
+    const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
+
+    x.setInterfaceAlgebraicCountString("something")
+    expect(x.interfaceAlgebraicCountString()).toBe("something")
+  });
+  test("Checking GeneratorProfile.implementationAlgebraicCountString.", () => {
+    const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
+
+    x.setImplementationAlgebraicCountString("something")
+    expect(x.implementationAlgebraicCountString()).toBe("something")
   });
   test("Checking GeneratorProfile.variableTypeObjectString.", () => {
     const x = new libcellml.GeneratorProfile(libcellml.GeneratorProfile.Profile.C)
diff --git a/tests/bindings/javascript/importsource.test.js b/tests/bindings/javascript/importsource.test.js
index e349be0880..f3b48c307a 100644
--- a/tests/bindings/javascript/importsource.test.js
+++ b/tests/bindings/javascript/importsource.test.js
@@ -34,7 +34,7 @@ describe("Import Source tests", () => {
         const iS = new libcellml.ImportSource()
         const m = new libcellml.Model()
 
-        expect(iS.model()).toBe(null)
+        expect(iS.model()).toBeNull()
 
         iS.setModel(m)
 
diff --git a/tests/bindings/javascript/reset.test.js b/tests/bindings/javascript/reset.test.js
index ab70a879bc..72a905f3f6 100644
--- a/tests/bindings/javascript/reset.test.js
+++ b/tests/bindings/javascript/reset.test.js
@@ -41,7 +41,7 @@ describe("Reset tests", () => {
         const r = new libcellml.Reset()
         const v = new libcellml.Variable()
 
-        expect(r.variable()).toBe(null)
+        expect(r.variable()).toBeNull()
 
         r.setVariable(v)
         expect(r.variable()).toStrictEqual(v)
@@ -50,7 +50,7 @@ describe("Reset tests", () => {
         const r = new libcellml.Reset()
         const v = new libcellml.Variable()
 
-        expect(r.testVariable()).toBe(null)
+        expect(r.testVariable()).toBeNull()
 
         r.setTestVariable(v)
         expect(r.testVariable()).toStrictEqual(v)
diff --git a/tests/bindings/javascript/variable.test.js b/tests/bindings/javascript/variable.test.js
index 9dbc06c2fb..a3d863b0da 100644
--- a/tests/bindings/javascript/variable.test.js
+++ b/tests/bindings/javascript/variable.test.js
@@ -70,7 +70,7 @@ describe("Variable tests", () => {
         const v = new libcellml.Variable("V")
         const u = new libcellml.Units("mV")
 
-        expect(v.units()).toBe(null)
+        expect(v.units()).toBeNull()
 
         v.setUnitsByName("A")
 
@@ -82,7 +82,7 @@ describe("Variable tests", () => {
 
         v.removeUnits()
 
-        expect(v.units()).toBe(null)
+        expect(v.units()).toBeNull()
 
         v.delete()
         u.delete()