refactor: clean code logic

Signed-off-by: Snehil Shah <[email protected]>

Author: Snehil-Shah

lib/node_modules/@stdlib/repl/lib/syntax_highlighter.js

@@ -295,7 +295,6 @@ setNonEnumerableReadOnly( SyntaxHighlighter.prototype, 'enable', function enable
 * @returns {void}
 */
 setNonEnumerableReadOnly( SyntaxHighlighter.prototype, 'onKeypress', function onKeypress() {
-	var highlightedLine;
 	var tokens;
 
 	if ( !this._enabled ) {
@@ -305,11 +304,8 @@ setNonEnumerableReadOnly( SyntaxHighlighter.prototype, 'onKeypress', function on
 		debug( 'Empty line detected. Skipping highlighting...' );
 		return;
 	}
-	// If no line change is detected, use the highlighted line from cache...
-	if ( this._line === this._rli.line ) {
-		debug( 'No line change detected. Using cache...' );
-		highlightedLine = this._highlightedLine;
-	} else {
+	// If line change is detected, tokenize & highlight the line. Use cache if no line change is detected...
+	if ( this._line !== this._rli.line ) {
 		// Update line buffer:
 		this._line = this._rli.line;
 
@@ -322,16 +318,13 @@ setNonEnumerableReadOnly( SyntaxHighlighter.prototype, 'onKeypress', function on
 		}
 		// Highlight:
 		debug( '%d tokens found. Highlighting...', tokens.length );
-		highlightedLine = this._highlightLine( this._line, tokens );
-
-		// Cache the newly highlighted line:
-		this._highlightedLine = highlightedLine;
+		this._highlightedLine = this._highlightLine( this._line, tokens );
 	}
 	// Replace:
 	debug( 'Replacing current line with the highlighted line...' );
 	readline.moveCursor( this._ostream, -1 * this._rli.cursor, 0 );
 	readline.clearLine( this._ostream, 1 );
-	this._ostream.write( highlightedLine );
+	this._ostream.write( this._highlightedLine );
 	readline.moveCursor( this._ostream, this._rli.cursor - this._line.length, 0 ); // eslint-disable-line max-len
 });