/
objectToQuery.js
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/
objectToQuery.js
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import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";
/**
* Converts an object representing a set of name/value pairs into a query string,
* with names and values encoded properly for use in a URL. Values that are arrays
* will produce multiple values with the same name.
* @function objectToQuery
*
* @param {Object} obj The object containing data to encode.
* @returns {String} An encoded query string.
*
*
* @example
* var str = Cesium.objectToQuery({
* key1 : 'some value',
* key2 : 'a/b',
* key3 : ['x', 'y']
* });
*
* @see queryToObject
* // str will be:
* // 'key1=some%20value&key2=a%2Fb&key3=x&key3=y'
*/
function objectToQuery(obj) {
//>>includeStart('debug', pragmas.debug);
if (!defined(obj)) {
throw new DeveloperError("obj is required.");
}
//>>includeEnd('debug');
var result = "";
for (var propName in obj) {
if (obj.hasOwnProperty(propName)) {
var value = obj[propName];
var part = encodeURIComponent(propName) + "=";
if (Array.isArray(value)) {
for (var i = 0, len = value.length; i < len; ++i) {
result += part + encodeURIComponent(value[i]) + "&";
}
} else {
result += part + encodeURIComponent(value) + "&";
}
}
}
// trim last &
result = result.slice(0, -1);
// This function used to replace %20 with + which is more compact and readable.
// However, some servers didn't properly handle + as a space.
// https://github.com/CesiumGS/cesium/issues/2192
return result;
}
export default objectToQuery;