我使用下面这段代码从服务器上获取数据,有的时候返回是Promise对象,有的时候返回一个json对象,我怎么写才能保证一定返回json对象?
postFromServer ( requestParam ) { const _self = this; let url = requestParam['url'] || ''; let headers = requestParam['headers'] || ''; let postBody = requestParam['postBody'] || ''; let code = requestParam['code'] || 200; let consoleMessage = requestParam['consoleMessage'] || false; let response = _self.sendToServer( url, 'POST', headers, postBody ); return response.then(function(value) { if ( consoleMessage === true ) { console.log('common-helper-es6 postFromServer === ', value) } return value; }, function(error) { console.log('postFromServer error === ', error) }); },
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