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node_modules/axios/lib/helpers/buildURL.js

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+'use strict';
+
+import utils from '../utils.js';
+import AxiosURLSearchParams from './AxiosURLSearchParams.js';
+
+/**
+ * It replaces URL-encoded forms of `:`, `$`, `,`, and spaces with
+ * their plain counterparts (`:`, `$`, `,`, `+`).
+ *
+ * @param {string} val The value to be encoded.
+ *
+ * @returns {string} The encoded value.
+ */
+export function encode(val) {
+  return encodeURIComponent(val)
+    .replace(/%3A/gi, ':')
+    .replace(/%24/g, '$')
+    .replace(/%2C/gi, ',')
+    .replace(/%20/g, '+');
+}
+
+/**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @param {?(object|Function)} options
+ *
+ * @returns {string} The formatted url
+ */
+export default function buildURL(url, params, options) {
+  if (!params) {
+    return url;
+  }
+  url = url || '';
+
+  const _options = utils.isFunction(options)
+    ? {
+        serialize: options,
+      }
+    : options;
+
+  // Read serializer options pollution-safely: own properties and methods on a
+  // class/template prototype are honored, but values injected onto a polluted
+  // Object.prototype are ignored.
+  const _encode = utils.getSafeProp(_options, 'encode') || encode;
+  const serializeFn = utils.getSafeProp(_options, 'serialize');
+
+  let serializedParams;
+
+  if (serializeFn) {
+    serializedParams = serializeFn(params, _options);
+  } else {
+    serializedParams = utils.isURLSearchParams(params)
+      ? params.toString()
+      : new AxiosURLSearchParams(params, _options).toString(_encode);
+  }
+
+  if (serializedParams) {
+    const hashmarkIndex = url.indexOf('#');
+
+    if (hashmarkIndex !== -1) {
+      url = url.slice(0, hashmarkIndex);
+    }
+    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+  }
+
+  return url;
+}