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node_modules/vant/es/utils/format/string.js

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+var camelizeRE = /-(\w)/g;
+export function camelize(str) {
+  return str.replace(camelizeRE, function (_, c) {
+    return c.toUpperCase();
+  });
+}
+export function padZero(num, targetLength) {
+  if (targetLength === void 0) {
+    targetLength = 2;
+  }
+
+  var str = num + '';
+
+  while (str.length < targetLength) {
+    str = '0' + str;
+  }
+
+  return str;
+}