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Uncaught TypeError: Cannot set properties of null

Posted at
<section>
  <form action="#" id="form">
    <input type="submit" value="検索">
  </form>
</section>

<script>
    'use strict';

    document.getElementById('from').onsubmit = function() {
        console.log('クリックされました');
    };
</script>

Uncaught TypeError: Cannot set properties of null

存在しない要素を指定したときに発生するらしい。
idをformfromにしていた。

document.getElementById('from').onsubmit = function() {

修正したら治った。

感想

タイポに最初に気づくべきだった。

出典

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