chore: fix JavaScript lint errors

PR-URL: #10331
Closes: #10327

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>
Reviewed-by: Geo Daoyu <geodaoyu@foxmail.com>
Signed-off-by: Bhargav Dabhade <bhargava2005dabhade@gmail.com>

Author: bhargava-d16

lib/node_modules/@stdlib/utils/tabulate-by/README.md

@@ -144,10 +144,10 @@ function indicator( value ) {
 vals = [ 'beep', 'boop', 'foo', 'bar', 'woot', 'woot' ];
 
 // Generate a random collection...
-arr = new Array( 100 );
-for ( i = 0; i < arr.length; i++ ) {
+arr = [];
+for ( i = 0; i < 100; i++ ) {
     j = floor( randu()*vals.length );
-    arr[ i ] = vals[ j ];
+    arr.push( vals[ j ] );
 }
 
 // Generate a frequency table:

lib/node_modules/@stdlib/utils/tabulate-by/examples/index.js

@@ -35,10 +35,10 @@ function indicator( value ) {
 vals = [ 'beep', 'boop', 'foo', 'bar', 'woot', 'woot' ];
 
 // Generate a random collection...
-arr = new Array( 100 );
-for ( i = 0; i < arr.length; i++ ) {
+arr = [];
+for ( i = 0; i < 100; i++ ) {
 	j = floor( randu()*vals.length );
-	arr[ i ] = vals[ j ];
+	arr.push( vals[ j ] );
 }
 
 // Generate a frequency table: