'use strict';
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var utils = require('./../utils');
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function encode(val) {
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return encodeURIComponent(val).
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replace(/%3A/gi, ':').
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replace(/%24/g, '$').
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replace(/%2C/gi, ',').
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replace(/%20/g, '+').
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replace(/%5B/gi, '[').
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replace(/%5D/gi, ']');
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}
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/**
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* Build a URL by appending params to the end
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*
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* @param {string} url The base of the url (e.g., http://www.google.com)
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* @param {object} [params] The params to be appended
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* @returns {string} The formatted url
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*/
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module.exports = function buildURL(url, params, paramsSerializer) {
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/*eslint no-param-reassign:0*/
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if (!params) {
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return url;
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}
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var serializedParams;
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if (paramsSerializer) {
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serializedParams = paramsSerializer(params);
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} else if (utils.isURLSearchParams(params)) {
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serializedParams = params.toString();
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} else {
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var parts = [];
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utils.forEach(params, function serialize(val, key) {
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if (val === null || typeof val === 'undefined') {
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return;
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}
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if (utils.isArray(val)) {
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key = key + '[]';
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} else {
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val = [val];
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}
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utils.forEach(val, function parseValue(v) {
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if (utils.isDate(v)) {
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v = v.toISOString();
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} else if (utils.isObject(v)) {
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v = JSON.stringify(v);
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}
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parts.push(encode(key) + '=' + encode(v));
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});
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});
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serializedParams = parts.join('&');
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}
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if (serializedParams) {
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var hashmarkIndex = url.indexOf('#');
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if (hashmarkIndex !== -1) {
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url = url.slice(0, hashmarkIndex);
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}
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url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
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}
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return url;
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};
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