更新

2026-08-11 17:41:36 +08:00
parent cfe4c82c90
commit 03fe4ddf9d
18771 changed files with 3617239 additions and 0 deletions
@@ -0,0 +1,11 @@
+exports = function(num) {
+    num = num.toExponential().match(regExponential);
+    var coefficient = num[1];
+    var exponent = parseInt(num[2], 10);
+    var places = (coefficient.split('.')[1] || '').length;
+    var ret = places - exponent;
+    return ret < 0 ? 0 : ret;
+};
+var regExponential = /^(-?\d?\.?\d+)e([+-]\d)+/;
+
+module.exports = exports;