feat!: remove built-in underscore.js dependency

README.md

@@ -12,7 +12,6 @@ The module includes a number of features on top of the standard [text/template](
 
 * [x] [Support for JavaScript snippets in templates](#using-javascript).
   * [x] ES5 Support provided by [goja](https://github.com/dop251/goja).
-  * [x] Built-in support for [underscore.js](http://underscorejs.org/).
   * [x] Import JavaScripts scripts from other files and inline JavaScript snippets.
   * [x] Modify the templating context from within JavaScript.
 * [x] [Controlling the flow of templating within the engine](#controlling-the-flow-of-templating).
@@ -325,14 +324,6 @@ require("path/to/file.js");
 
 Any functions or variables defined in the imported file will be available in the global scope.
 
-### Using Underscore.js
-
-The [underscore.js](http://underscorejs.org/) library is included by default and can be used in your JavaScript snippets/code.
-
-```js
-_.each([1, 2, 3], console.log);
-```
-
 ### Importing External Javascript Libraries
 
 Using `WithJSFiles` you can import external JavaScript libraries into the global scope. For example:

internal/vm/vm.go

@@ -19,7 +19,6 @@ import (
 	esbuild "github.com/evanw/esbuild/pkg/api"
 
 	"github.com/speakeasy-api/easytemplate/internal/utils"
-	"github.com/speakeasy-api/easytemplate/pkg/underscore"
 )
 
 var (
@@ -76,10 +75,6 @@ type program struct {
 // New creates a new VM.
 func New(randSource RandSource) (*VM, error) {
 	g := goja.New()
-	_, err := g.RunString(underscore.JS)
-	if err != nil {
-		return nil, utils.HandleJSError("failed to init underscore", err)
-	}
 
 	new(require.Registry).Enable(g)
 	console.Enable(g)

testdata/scripts/logeach.js

@@ -1,3 +1,3 @@
-_.each(["a", "b", "c"], (v) => {
+["a", "b", "c"].forEach((v) => {
   console.log(v);
 });

testdata/scripts/test.js

@@ -1,14 +1,14 @@
 require("scripts/include.js");
 
-_.each(["a", "b", "c"], (v) => {
+["a", "b", "c"].forEach((v) => {
   console.log(v);
 });
 
 console.log("Hello easytemplate!");
 
 let values = [1, 2, 3, 4, 5];
 
-let reduced = _.reduce(values, (sum, value) => add(sum, value), 0);
+let reduced = values.reduce((sum, value) => add(sum, value), 0);
 
 templateFile("templates/test.stmpl", "test.txt", {
   Test: "from test.js",

testdata/templates/test4.stmpl

@@ -1,7 +1,7 @@
 {{.Local.Test}}
 ```sjs
 require("scripts/logeach.js");
-_.each(["z", "x", "y"], (v) => {
+["z", "x", "y"].forEach((v) => {
   console.log(v);
 });
 sjs```