docs: update js examples to use logEach

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---

Author: gunjjoshi

lib/node_modules/@stdlib/number/uint32/base/identity/README.md

@@ -83,20 +83,18 @@ v = identity( 4294967295 );
 
 ```javascript
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var identity = require( '@stdlib/number/uint32/base/identity' );
 
 var opts = {
     'dtype': 'uint32'
 };
 
+// Create an array of random values:
 var x = discreteUniform( 100, 0, 50, opts );
 
-var v;
-var i;
-for ( i = 0; i < x.length; i++ ) {
-    v = identity( x[ i ] );
-    console.log( 'identity(%d) = %d', x[ i ], v );
-}
+// Perform element-wise operation:
+logEachMap( 'identity(%d) = %d', x, identity );
 ```
 
 </section>

lib/node_modules/@stdlib/number/uint32/base/identity/examples/index.js

@@ -19,17 +19,15 @@
 'use strict';
 
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var identity = require( './../lib' );
 
 var opts = {
 	'dtype': 'uint32'
 };
 
+// Create an array of random values:
 var x = discreteUniform( 100, 0, 50, opts );
 
-var v;
-var i;
-for ( i = 0; i < x.length; i++ ) {
-	v = identity( x[ i ] );
-	console.log( 'identity(%d) = %d', x[ i ], v );
-}
+// Perform element-wise operation:
+logEachMap( 'identity(%d) = %d', x, identity );