figbertmath

commit c0fe4da0279ba83d7bcb28080a5a3479a21ff3e5
parent c49301ebefc87946744d69aa2112a719c4bb46d5
Author: therealFIGBERT <figbertwelner@gmail.com>
Date:   Mon, 25 Nov 2019 09:53:58 -0800

Add error handling for NaN and null/undefined in basic calculator

Diffstat:
M
src/components/basicCalc/basicHandler.js
 | 
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/components/basicCalc/basicHandler.js b/src/components/basicCalc/basicHandler.js
@@ -85,6 +85,9 @@ export class BasicCalc extends React.Component {
             if (!isNaN(Number(this.state.input.slice(-1)))) {
                 // eslint-disable-next-line
                 final = eval(this.state.input);
+                if (final == null || isNaN(final)) {
+                    final = 'ERROR';
+                }
             } else {
                 final = 'ERROR';
             }