feat(repl): add global clear() function (#14332)

This commit adds a clear() function in the REPL which works
similar to console.clear().

2 files changed, 20 insertions, 0 deletions

diff --git a/cli/tests/integration/repl_tests.rs b/cli/tests/integration/repl_tests.rs
index a63be3ece..05a17d4b7 100644
--- a/cli/tests/integration/repl_tests.rs
+++ b/cli/tests/integration/repl_tests.rs
@@ -761,3 +761,21 @@ fn eval_file_flag_multiple_files() {
   assert!(out.contains("helloFOO"));
   assert!(err.contains("Download"));
 }
+
+#[test]
+fn pty_clear_function() {
+  util::with_pty(&["repl"], |mut console| {
+    console.write_line("console.log('hello');");
+    console.write_line("clear();");
+    console.write_line("const clear = 1 + 2;");
+    console.write_line("clear;");
+    console.write_line("close();");
+
+    let output = console.read_all_output();
+    assert!(output.contains("hello"));
+    assert!(output.contains("[1;1H"));
+    assert!(output.contains("undefined"));
+    assert!(output.contains("const clear = 1 + 2;"));
+    assert!(output.contains('3'));
+  });
+}
diff --git a/cli/tools/repl/session.rs b/cli/tools/repl/session.rs
index 57109eb1d..d72fc9499 100644
--- a/cli/tools/repl/session.rs
+++ b/cli/tools/repl/session.rs
@@ -41,6 +41,8 @@ Object.defineProperty(globalThis, "_error", {
    console.log("Last thrown error is no longer saved to _error.");
   },
 });
+
+globalThis.clear = console.clear.bind(console);
 "#;
 
 pub enum EvaluationOutput {