update emscripten to latest version

Author: lovasoa

.devcontainer/Dockerfile

@@ -6,7 +6,7 @@
 
 # See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.155.1/containers/typescript-node/.devcontainer/base.Dockerfile
 # [Choice] Node.js version: 14, 12, 10
-ARG VARIANT="14-buster"
+ARG VARIANT="16-buster"
 FROM mcr.microsoft.com/vscode/devcontainers/typescript-node:0-${VARIANT}
 
 # [Optional] Uncomment if you want to install an additional version of node using nvm
@@ -24,7 +24,7 @@ FROM mcr.microsoft.com/vscode/devcontainers/typescript-node:0-${VARIANT}
 # Install EMSDK to /emsdk just like the EMSDK Dockerfile: https://github.com/emscripten-core/emsdk/blob/master/docker/Dockerfile
 ENV EMSDK /emsdk
 # We pin the EMSDK version rather than 'latest' so that everyone is using the same compiler version
-ENV EMSCRIPTEN_VERSION 3.1.20
+ENV EMSCRIPTEN_VERSION 3.1.49
 
 RUN git clone https://github.com/emscripten-core/emsdk.git $EMSDK
 

.devcontainer/devcontainer.json

@@ -4,9 +4,9 @@
 	"name": "Node.js & TypeScript",
 	"build": {
 		"dockerfile": "Dockerfile",
-		// Update 'VARIANT' to pick a Node version: 10, 12, 14
+		// Update 'VARIANT' to pick a Node version: 12, 14, 16
 		"args": {
-			"VARIANT": "14-buster"
+			"VARIANT": "16-buster"
 		},
 	},
 	// Set *default* container specific settings.json values on container create.