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元記事 JavaScriptでGETパラメーターを取得する をES6で書いてみた。

 *  GETパラメータを配列にして返す
 *  @return     パラメータのObject
const getUrlVars = () => {
    const vars = {}; 
    location.search.substring(1).split('&').forEach(param => {
        const [key, ...val] = param.split('=');
        if (key !== '') {
            vars[key] = decodeURI(val.join('='));
    return vars;
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