diff --git a/wasm/demo/node/src/main.ts b/wasm/demo/node/src/main.ts
index 124d5d1..c4a1c39 100644
--- a/wasm/demo/node/src/main.ts
+++ b/wasm/demo/node/src/main.ts
@@ -1,7 +1,7 @@
 import { Dater } from "cesride-wasm";
 
 function main() {
-    const date = new Dater("2020-08-22T17:50:09.988921+00:00", undefined, undefined, undefined, undefined, undefined);
+    const date = Dater.new_with_dts("2020-08-22T17:50:09.988921+00:00");
     console.log("<p>Date:</p>");
     console.log("dts: " + date.dts + "<br/>");
     console.log("dtsb: " + date.dtsb + "<br/>");
diff --git a/wasm/demo/web/index.html b/wasm/demo/web/index.html
index 6240d13..81026df 100644
--- a/wasm/demo/web/index.html
+++ b/wasm/demo/web/index.html
@@ -45,7 +45,7 @@
         await init();
 
 		let dts = "2020-08-22T17:50:09.988921+00:00";
-		let dater = new Dater(dts, undefined, undefined, undefined, undefined, undefined);
+		let dater = Dater.new_with_dts(dts);
 		document.write("<p>Date:</p>");
 		document.write("<code>")
 		document.write("dts: " + dater.dts + "<br/>");
@@ -57,7 +57,7 @@
 		document.write("qb64b: " + dater.qb64b + "<br/>");
 		document.write("qb2: " + dater.qb2 + "<br/>");
 		try {
-		  dater = new Dater("asdf", undefined, undefined, undefined, undefined, undefined);
+		  dater = Dater.new_with_dts(dts = "asdf");
 		  document.write("Wrong dater: " + dater.dts + "<br/>");
 		} catch (error) {
 		  document.write("Error: " + error + "<br/>");
diff --git a/wasm/demo/webpack/index.js b/wasm/demo/webpack/index.js
index 3223355..3e90a9a 100644
--- a/wasm/demo/webpack/index.js
+++ b/wasm/demo/webpack/index.js
@@ -13,7 +13,7 @@ document.write(`
 `)
 
 let dts = "2020-08-22T17:50:09.988921+00:00";
-let dater = new cesride.Dater(dts, undefined, undefined, undefined, undefined, undefined);
+let dater = cesride.Dater.new_with_dts(dts);
 
 const icp = {
   "v": "KERI10JSON00015a_",
diff --git a/wasm/src/primitives/dater.rs b/wasm/src/primitives/dater.rs
index eddcb28..94e2970 100644
--- a/wasm/src/primitives/dater.rs
+++ b/wasm/src/primitives/dater.rs
@@ -31,6 +31,31 @@ impl DaterWrapper {
         Ok(DaterWrapper(dater))
     }
 
+    pub fn new_with_dts(dts: &str, code: Option<String>) -> Result<DaterWrapper> {
+        let dater = Dater::new_with_dts(dts, code.as_deref()).as_js()?;
+        Ok(DaterWrapper(dater))
+    }
+
+    pub fn new_with_raw(raw: &[u8], code: Option<String>) -> Result<DaterWrapper> {
+        let dater = Dater::new_with_raw(raw, code.as_deref()).as_js()?;
+        Ok(DaterWrapper(dater))
+    }
+
+    pub fn new_with_qb64b(qb64b: &[u8]) -> Result<DaterWrapper> {
+        let dater = Dater::new_with_qb64b(qb64b).as_js()?;
+        Ok(DaterWrapper(dater))
+    }
+
+    pub fn new_with_qb64(qb64: &str) -> Result<DaterWrapper> {
+        let dater = Dater::new_with_qb64(qb64).as_js()?;
+        Ok(DaterWrapper(dater))
+    }
+
+    pub fn new_with_qb2(qb2: &[u8]) -> Result<DaterWrapper> {
+        let dater = Dater::new_with_qb2(qb2).as_js()?;
+        Ok(DaterWrapper(dater))
+    }
+
     #[wasm_bindgen(getter)]
     pub fn dts(&self) -> Result<String> {
         self.0.dts().as_js().map_err(JsValue::from)