add Matrix as a constructor type

josdejong · Mar 10, 2022 · 1a7ba33 · 1a7ba33
1 parent b5fa70f
commit 1a7ba33
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diff --git a/types/index.d.ts b/types/index.d.ts
@@ -352,6 +352,8 @@ declare namespace math {
     RelationalNode: RelationalNodeCtor;
     SymbolNode: SymbolNodeCtor;
 
+    Matrix: MatrixCtor;
+
     /**
      * If null were to be included in this interface, it would be
      * auto-suggested as an import in VSCode. This causes issues because
@@ -3248,6 +3250,10 @@ declare namespace math {
     swapRows(i: number, j: number): Matrix;
   }
 
+  interface MatrixCtor {
+    new(): Matrix;
+  }
+
   interface BigNumber extends Decimal {} // tslint:disable-line no-empty-interface
 
   interface Fraction {

diff --git a/types/index.ts b/types/index.ts
@@ -357,6 +357,11 @@ Matrices examples
     assert.deepStrictEqual(math.concat([[0, 1, 2]], [[1, 2, 3]]), [[ 0, 1, 2, 1, 2, 3 ]]);
     assert.deepStrictEqual(math.concat([[0, 1, 2]], [[1, 2, 3]], 0), [[ 0, 1, 2 ], [ 1, 2, 3 ]]);
   }
+
+  // Matrix is available as a constructor for instanceof checks
+  {
+    assert.strictEqual(math.matrix([1, 2, 3]) instanceof math.Matrix, true)
+  }
 }
 
 /*
@@ -640,6 +645,9 @@ Factory Test
   assert.    strictEqual(math.hasNumericValue(math.complex('2-4i')), false);
 }
 
+/**
+ * src/util/is functions
+ */
 {
   const math = create(all, {});