refactor: use logEachMap and array discrete-uniform for example

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---

Author: Lokeshranjan8

lib/node_modules/@stdlib/number/float32/base/add/examples/index.js

@@ -18,15 +18,11 @@
 
 'use strict';
 
-var rand = require( '@stdlib/random/base/discrete-uniform' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var addf = require( './../lib' );
 
-var x;
-var y;
-var i;
+var x = discreteUniform( 100, -50, 50 );
+var y = discreteUniform( 100, -50, 50 );
 
-for ( i = 0; i < 100; i++ ) {
-	x = rand( -50, 50 );
-	y = rand( -50, 50 );
-	console.log( '%d + %d = %d', x, y, addf( x, y ) );
-}
+logEachMap( '%d + %d = %d', x, y, addf );

lib/node_modules/@stdlib/number/float32/base/div/examples/index.js

@@ -18,15 +18,11 @@
 
 'use strict';
 
-var rand = require( '@stdlib/random/base/discrete-uniform' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var divf = require( './../lib' );
 
-var x;
-var y;
-var i;
+var x = discreteUniform( 100, -50, 50 );
+var y = discreteUniform( 100, -50, 50 );
 
-for ( i = 0; i < 100; i++ ) {
-	x = rand( -50, 50 );
-	y = rand( -50, 50 );
-	console.log( '%d / %d = %d', x, y, divf( x, y ) );
-}
+logEachMap( '%d / %d = %d', x, y, divf );