chore: fix JavaScript lint errors

Propagates fix from 650bf8a ("chore: fix JavaScript lint errors") to sibling example files that still build error messages via string concatenation. Replaces `new Error( 'text: ' + value )` with `new Error( format( 'text: %s', value ) )` and adds the `@stdlib/string/format` import across `utils/async/inmap`, `utils/async/inmap-right`, `utils/async/for-each`, and `datasets/us-states-capitals-names` examples.

Author: claude

lib/node_modules/@stdlib/datasets/us-states-capitals-names/examples/index.js

@@ -19,6 +19,7 @@
 'use strict';
 
 var capitalize = require( '@stdlib/string/capitalize' );
+var format = require( '@stdlib/string/format' );
 var table = require( './../lib' );
 
 var tbl = table();
@@ -38,7 +39,7 @@ function getState( capital ) {
 
 	// Ensure a valid capital name was provided...
 	if ( state === void 0 ) {
-		throw new Error( 'unrecognized capital. Value: `' + capital + '`.' );
+		throw new Error( format( 'unrecognized capital. Value: `%s`.', capital ) );
 	}
 	return state;
 }

lib/node_modules/@stdlib/utils/async/for-each/examples/index.js

@@ -20,6 +20,7 @@
 
 var resolve = require( 'path' ).resolve;
 var readFile = require( '@stdlib/fs/read-file' );
+var format = require( '@stdlib/string/format' );
 var forEachAsync = require( './../lib' );
 
 var files = [
@@ -42,7 +43,7 @@ function read( file, next ) {
 
 	function onFile( error ) {
 		if ( error ) {
-			error = new Error( 'unable to read file: '+file );
+			error = new Error( format( 'unable to read file: %s', file ) );
 			return next( error );
 		}
 		console.log( 'Successfully read file: %s', file );

lib/node_modules/@stdlib/utils/async/inmap-right/examples/index.js

@@ -20,6 +20,7 @@
 
 var resolve = require( 'path' ).resolve;
 var readFile = require( '@stdlib/fs/read-file' );
+var format = require( '@stdlib/string/format' );
 var inmapRightAsync = require( './../lib' );
 
 var files = [
@@ -42,7 +43,7 @@ function read( file, next ) {
 
 	function onFile( error, data ) {
 		if ( error ) {
-			error = new Error( 'unable to read file: '+file );
+			error = new Error( format( 'unable to read file: %s', file ) );
 			return next( error );
 		}
 		next( null, data );

lib/node_modules/@stdlib/utils/async/inmap/examples/index.js

@@ -20,6 +20,7 @@
 
 var resolve = require( 'path' ).resolve;
 var readFile = require( '@stdlib/fs/read-file' );
+var format = require( '@stdlib/string/format' );
 var inmapAsync = require( './../lib' );
 
 var files = [
@@ -42,7 +43,7 @@ function read( file, next ) {
 
 	function onFile( error, data ) {
 		if ( error ) {
-			error = new Error( 'unable to read file: '+file );
+			error = new Error( format( 'unable to read file: %s', file ) );
 			return next( error );
 		}
 		next( null, data );