just want this to be a part of the test.

src/array-test.ts

@@ -0,0 +1,102 @@
+
+const a: number[] = [];
+
+function time(fn: () => void): number {
+    const now = Date.now();
+    fn();
+    return Date.now() - now;
+}
+
+function unshift(number: number) {
+    for (let i = 0; i < number; ++i) {
+        a.unshift(Math.random());
+    }
+}
+
+function shift(number: number) {
+    for (let i = 0; i < number; ++i) {
+        a.shift();
+    }
+}
+
+function push(number: number) {
+    for (let i = 0; i < number; ++i) {
+        a.push(Math.random());
+    }
+}
+
+function pop(number: number) {
+    for (let i = 0; i < number; ++i) {
+        a.pop();
+    }
+}
+
+function get(idx: number) {
+    return function() {
+        a[idx];
+    };
+}
+
+function push_arr(count: number) {
+    return function() {
+        push(count);
+    };
+}
+
+function pop_arr(count: number) {
+    return function() {
+        pop(count);
+    };
+}
+
+function unshift_arr(count: number) {
+    return function() {
+        unshift(count);
+    };
+}
+
+function shift_arr(count: number) {
+    return function() {
+        shift(count);
+    };
+}
+
+const tests = [10, 100, 1000, 10000, 100000, 1_000_000, 10_000_000];
+console.log("Testing get");
+tests.forEach(t => {
+    a.length = 0;
+    push(t);
+    console.log(t, time(get(t - 1)));
+});
+
+console.log("push");
+tests.forEach(t => {
+    a.length = 0;
+    push(t);
+
+    console.log(t, time(push_arr(1000)));
+});
+
+console.log("pop");
+tests.forEach(t => {
+    a.length = 0;
+    push(t);
+
+    console.log(t, time(pop_arr(1000)));
+});
+
+console.log("unshift");
+tests.forEach(t => {
+    a.length = 0;
+    push(t);
+
+    console.log(t, time(unshift_arr(1000)));
+});
+
+console.log("shift");
+tests.forEach(t => {
+    a.length = 0;
+    push(t);
+
+    console.log(t, time(shift_arr(1000)));
+});