buffer: refactor Buffer.prototype.inspect()

Replace toString().match().join() with toString().replace().trim(). This enables the elimination of a length check becuase replace() will return empty string if Buffer is empty whereas match() returns null. PR-URL: #11600 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Yuta Hiroto <[email protected]> Reviewed-By: Luigi Pinca <[email protected]>

Author: Trott

lib/buffer.js

@@ -521,12 +521,10 @@ Buffer.prototype.equals = function equals(b){
 Buffer.prototype[internalUtil.customInspectSymbol]=functioninspect(){
 varstr='';
 varmax=exports.INSPECT_MAX_BYTES;
-if(this.length>0){
-str=this.toString('hex',0,max).match(/.{2}/g).join(' ');
-if(this.length>max)
-str+=' ... ';
-}
-return'<'+this.constructor.name+' '+str+'>';
+str=this.toString('hex',0,max).replace(/(.{2})/g,'$1 ').trim();
+if(this.length>max)
+str+=' ... ';
+return`<${this.constructor.name}${str}>`;
 };
 Buffer.prototype.inspect=Buffer.prototype[internalUtil.customInspectSymbol];