fix: handle null emits

rezo-labs · Oct 26, 2022 · 6ada1b3 · 6ada1b3
1 parent 0fff989
commit 6ada1b3
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/interface.vue b/src/interface.vue
@@ -70,10 +70,16 @@ export default defineComponent({
 		};
 
 		function compute() {
-			return props.template.replace(/{{.*?}}/g, (match) => {
+			const computedValue = props.template.replace(/{{.*?}}/g, (match) => {
 				const expression = match.slice(2, -2).trim();
 				return parseExpression(expression, values.value);
 			});
+
+			if (!computedValue) {
+				return null;
+			}
+
+			return computedValue;
 		}
 	},
 });

diff --git a/src/operations.ts b/src/operations.ts
@@ -10,6 +10,10 @@ export function parseExpression(exp: string, values: Record<string, any>): any {
 			const { op, a, b } = opMatch;
 			const valueA = parseExpression(a, values);
 
+			if (!valueA) {
+				return '';
+			}
+
 			// unary operators
 			if (b === null) {
 				// type conversion