Make numbers nullable by allowing null values to be echoed from asNum…

…ber() (#1269) * Make numbers nullable by allowing null values to be echoed from asNumber() * fix: revert package-lock changes
rjsf-team · May 7, 2019 · 1ee343d · 1ee343d
1 parent fba5bee
commit 1ee343d
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Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/playground/samples/nullable.js b/playground/samples/nullable.js
@@ -15,7 +15,7 @@ module.exports = {
         title: "Last name",
       },
       age: {
-        type: "integer",
+        type: ["integer", "null"],
         title: "Age",
       },
       bio: {
@@ -43,6 +43,7 @@ module.exports = {
       "ui:widget": "updown",
       "ui:title": "Age of person",
       "ui:description": "(earthian year)",
+      "ui:emptyValue": null,
     },
     bio: {
       "ui:widget": "textarea",

diff --git a/src/utils.js b/src/utils.js
@@ -272,6 +272,9 @@ export function asNumber(value) {
   if (value === "") {
     return undefined;
   }
+  if (value === null) {
+    return null;
+  }
   if (/\.$/.test(value)) {
     // "3." can't really be considered a number even if it parses in js. The
     // user is most likely entering a float.

diff --git a/test/utils_test.js b/test/utils_test.js
@@ -342,6 +342,10 @@ describe("utils", () => {
     it("should return undefined if the input is empty", () => {
       expect(asNumber("")).eql(undefined);
     });
+
+    it("should return null if the input is null", () => {
+      expect(asNumber(null)).eql(null);
+    });
   });
 
   describe("orderProperties()", () => {