Merge pull request #1663 from sampotts/master

Merge back to beta

1 files changed, 17 insertions, 0 deletions

diff --git a/src/js/utils/numbers.js b/src/js/utils/numbers.js
new file mode 100644
index 00000000..f6eb65c8
--- /dev/null
+++ b/src/js/utils/numbers.js
@@ -0,0 +1,17 @@
+/**
+ * Returns a number whose value is limited to the given range.
+ *
+ * Example: limit the output of this computation to between 0 and 255
+ * (x * 255).clamp(0, 255)
+ *
+ * @param {Number} input
+ * @param {Number} min The lower boundary of the output range
+ * @param {Number} max The upper boundary of the output range
+ * @returns A number in the range [min, max]
+ * @type Number
+ */
+export function clamp(input = 0, min = 0, max = 255) {
+    return Math.min(Math.max(input, min), max);
+}
+
+export default { clamp };