1 files changed, 29 insertions, 0 deletions
diff --git a/challenge-284/zapwai/javascript/ch-1.js b/challenge-284/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..ced6b0c439
--- /dev/null
+++ b/challenge-284/zapwai/javascript/ch-1.js
@@ -0,0 +1,29 @@
+let ints = [2, 2, 3, 4];
+proc(ints);
+ints = [1, 2, 2, 3, 3, 3];
+proc(ints);
+ints = [1, 1, 1, 3];
+proc(ints);
+function proc(ints) {
+    console.log("Input: ints =", ints);
+    let lucky = -1;
+    let max = 0;
+    for (let item of ints) {
+	if (max < item) {
+	    max = item;
+	}
+    }
+    let freq = [];
+    for (let j = 0; j < 1 + max; j++) {
+	freq.push(0);
+    }
+    for (let item of ints) {
+	freq[item]++;
+    }
+    for (let i = 1; i < freq.length; i++) {
+	if (i == freq[i]) {
+	    lucky = i;
+	}
+    }
+    console.log("Output:", lucky);
+}