docs: clean-up examples

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---

Author: kgryte

lib/node_modules/@stdlib/math/base/assert/is-odd/README.md

@@ -88,17 +88,11 @@ bool = isOdd( NaN );
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var isOdd = require( '@stdlib/math/base/assert/is-odd' );
 
-var bool;
-var len;
-var x;
-var i;
-
-len = 100;
-x = discreteUniform( len, 0, 1000 );
+var x = discreteUniform( 100, 0, 1000 );
 
-for ( i = 0; i < 100; i++ ) {
-    bool = isOdd( x[ i ] );
-    console.log( '%d is %s', x[ i ], ( bool ) ? 'odd' : 'not odd' );
+var i;
+for ( i = 0; i < x.length; i++ ) {
+    console.log( '%d is %s', x[ i ], ( isOdd( x[ i ] ) ) ? 'odd' : 'not odd' );
 }
 ```
 

lib/node_modules/@stdlib/math/base/assert/is-odd/examples/index.js

@@ -21,15 +21,9 @@
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var isOdd = require( './../lib' );
 
-var bool;
-var len;
-var x;
-var i;
-
-len = 100;
-x = discreteUniform( len, 0, 1000 );
+var x = discreteUniform( 100, 0, 1000 );
 
-for ( i = 0; i < 100; i++ ) {
-	bool = isOdd( x[ i ] );
-	console.log( '%d is %s', x[ i ], ( bool ) ? 'odd' : 'not odd' );
+var i;
+for ( i = 0; i < x.length; i++ ) {
+	console.log( '%d is %s', x[ i ], ( isOdd( x[ i ] ) ) ? 'odd' : 'not odd' );
 }