bench: refactor to use string interpolation in ndarray/fill

PR-URL: #11074
Ref: #8647
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: parthodas23

lib/node_modules/@stdlib/ndarray/fill/benchmark/benchmark.1d.js

@@ -24,6 +24,7 @@ var bench = require( '@stdlib/bench' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var zeros = require( '@stdlib/ndarray/zeros' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var fill = require( './../lib' );
 
@@ -110,7 +111,7 @@ function main() {
 
 				sh = [ len ];
 				f = createBenchmark( len, sh, t1, ord );
-				bench( pkg+':ndims='+sh.length+',len='+len+',shape=['+sh.join(',')+'],xorder='+ord+',xtype='+t1, f );
+				bench( format( '%s:ndims=%d,len=%d,shape=[%s],xorder=%s,xtype=%s', pkg, sh.length, len, sh.join(','), ord, t1 ), f );
 			}
 		}
 	}

lib/node_modules/@stdlib/ndarray/fill/benchmark/benchmark.2d.js

@@ -26,6 +26,7 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var floor = require( '@stdlib/math/base/special/floor' );
 var sqrt = require( '@stdlib/math/base/special/sqrt' );
 var zeros = require( '@stdlib/ndarray/zeros' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var fill = require( './../lib' );
 
@@ -112,17 +113,16 @@ function main() {
 
 				sh = [ len/2, 2 ];
 				f = createBenchmark( len, sh, t1, ord );
-				bench( pkg+':ndims='+sh.length+',len='+len+',shape=['+sh.join(',')+'],xorder='+ord+',xtype='+t1, f );
+				bench( format( '%s:ndims=%d,len=%d,shape=[%s],xorder=%s,xtype=%s', pkg, sh.length, len, sh.join(','), ord, t1 ), f );
 
 				sh = [ 2, len/2 ];
 				f = createBenchmark( len, sh, t1, ord );
-				bench( pkg+':ndims='+sh.length+',len='+len+',shape=['+sh.join(',')+'],xorder='+ord+',xtype='+t1, f );
-
+				bench( format( '%s:ndims=%d,len=%d,shape=[%s],xorder=%s,xtype=%s', pkg, sh.length, len, sh.join(','), ord, t1 ), f );
 				len = floor( sqrt( len ) );
 				sh = [ len, len ];
 				len *= len;
 				f = createBenchmark( len, sh, t1, ord );
-				bench( pkg+':ndims='+sh.length+',len='+len+',shape=['+sh.join(',')+'],xorder='+ord+',xtype='+t1, f );
+				bench( format( '%s:ndims=%d,len=%d,shape=[%s],xorder=%s,xtype=%s', pkg, sh.length, len, sh.join(','), ord, t1 ), f );
 			}
 		}
 	}