fix: 微信登录补充保存username和role

node_modules/licia/viewportScale.js

@@ -0,0 +1,30 @@
+var meta = require('./meta');
+var clamp = require('./clamp');
+var trim = require('./trim');
+var each = require('./each');
+var map = require('./map');
+var isNaN = require('./isNaN');
+exports = function() {
+    var viewport = meta('viewport');
+    if (!viewport) return 1;
+    viewport = map(viewport.split(','), function(val) {
+        return trim(val);
+    });
+    var minScale = 0.25,
+        maxScale = 5,
+        initialScale = 1;
+    each(viewport, function(val) {
+        val = val.split('=');
+        var key = val[0];
+        val = val[1];
+        if (key === 'initial-scale') initialScale = +val;
+        if (key === 'maximum-scale') maxScale = +val;
+        if (key === 'minimum-scale') minScale = +val;
+    });
+    var ret = clamp(initialScale, minScale, maxScale);
+
+    if (isNaN(ret)) return 1;
+    return ret;
+};
+
+module.exports = exports;