doc: enable eslint prefer-template rule

PR-URL: https://github.com/nodejs/node/pull/18831
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matheus Marchini <matheus@sthima.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

4 files changed, 5 insertions, 4 deletions

diff --git a/doc/.eslintrc.yaml b/doc/.eslintrc.yaml
index c8c1612e3a..7b38afec10 100644
--- a/doc/.eslintrc.yaml
+++ b/doc/.eslintrc.yaml
@@ -12,6 +12,7 @@ rules:
   no-var: error
   prefer-const: error
   prefer-rest-params: error
+  prefer-template: error
 
   # Stylistic Issues
   no-multiple-empty-lines: [error, {max: 1, maxEOF: 0, maxBOF: 0}]
diff --git a/doc/api/esm.md b/doc/api/esm.md
index 3ff2904488..2a56433295 100644
--- a/doc/api/esm.md
+++ b/doc/api/esm.md
@@ -118,7 +118,7 @@ given module specifier and parent file URL:
 
 ```js
 const baseURL = new URL('file://');
-baseURL.pathname = process.cwd() + '/';
+baseURL.pathname = `${process.cwd()}/`;
 
 export async function resolve(specifier,
                               parentModuleURL = baseURL,
@@ -161,7 +161,7 @@ const builtins = Module.builtinModules;
 const JS_EXTENSIONS = new Set(['.js', '.mjs']);
 
 const baseURL = new URL('file://');
-baseURL.pathname = process.cwd() + '/';
+baseURL.pathname = `${process.cwd()}/`;
 
 export function resolve(specifier, parentModuleURL = baseURL, defaultResolve) {
   if (builtins.includes(specifier)) {
diff --git a/doc/api/http.md b/doc/api/http.md
index daa058a8b0..e396471b3e 100644
--- a/doc/api/http.md
+++ b/doc/api/http.md
@@ -422,7 +422,7 @@ const req = http.request(options);
 req.end();
 
 req.on('information', (res) => {
-  console.log('got information prior to main response: ' + res.statusCode);
+  console.log(`Got information prior to main response: ${res.statusCode}`);
 });
 ```
 
diff --git a/doc/api/stream.md b/doc/api/stream.md
index c72873c466..20eaa95bc1 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -1852,7 +1852,7 @@ class Counter extends Readable {
     if (i > this._max)
       this.push(null);
     else {
-      const str = '' + i;
+      const str = String(i);
       const buf = Buffer.from(str, 'ascii');
       this.push(buf);
     }