shigemk2 https://blog.hatena.ne.jp/shigemk2/ by shigemk2 https://www.shigemk2.com/ Python Python map/filter こんな感じ。 >>> items = [{"id":1,"name":"Alice"}, {"id":2,"name":"Bob"}, {"id":3,"name":"Charles"}] >>> list(filter(lambda x: x["id"], items)) [{'id': 1, 'name': 'Alice'}, {'id': 2, 'name': 'Bob'}, {'id': 3, 'name': 'Charles'}] >>> list(map(lambda x: x["id"], items)) [1, 2, 3] >>> list(… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F2017%2F12%2F24%2FPython_map%2Ffilter" title="Python map/filter - by shigemk2" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2017-12-24 15:42:04 rich https://www.shigemk2.com/entry/2017/12/24/Python_map/filter 1.0 100%