1 files changed, 41 insertions, 0 deletions
diff --git a/school/node_modules/string-strip-html/examples/strip-from-json.js b/school/node_modules/string-strip-html/examples/strip-from-json.js
new file mode 100644
index 0000000..95d8bd0
--- /dev/null
+++ b/school/node_modules/string-strip-html/examples/strip-from-json.js
@@ -0,0 +1,41 @@
+// Strip HTML from a raw JSON string
+
+import { strict as assert } from "assert";
+import { stripHtml } from "../dist/string-strip-html.esm.js";
+import { traverse } from "../../ast-monkey-traverse";
+
+const stripFromJsonStr = (str) => {
+  return traverse(JSON.parse(str), (key, val) => {
+    // if currently an object is traversed, you get both "key" and "val"
+    // if it's array, only "key" is present, "val" is undefined
+    const current = val !== undefined ? val : key;
+    if (
+      // ensure it's a plain object, not array (monkey will report only "key" in
+      // arrays and "val" will be undefined)
+      // also ensure object's value a string, not boolean or number, because we
+      // don't strip HTML from booleans or numbers or anything else than strings
+      typeof val === "string"
+    ) {
+      // monkey's callback is like Array.map - whatever you return gets written:
+      return stripHtml(val).result;
+    }
+    // default return, do nothing:
+    return current;
+  });
+};
+
+// nothing to strip, "<" is false alarm:
+assert.equal(
+  JSON.stringify(stripFromJsonStr(`{"Operator":"<","IsValid":true}`), null, 0),
+  `{"Operator":"<","IsValid":true}`
+);
+
+// some HTML within one of key values, monkey will skip the boolean:
+assert.equal(
+  JSON.stringify(
+    stripFromJsonStr(`{"Operator":"a <div>b</div> c","IsValid":true}`),
+    null,
+    0
+  ),
+  `{"Operator":"a b c","IsValid":true}`
+);