DOM в html5

[ismakv]

Сейчас прохожу данный урок http://htmlbook.ru/html5/canvas, там есть такая строчка

Теперь легко можно обнаружить элемент <canvas> в DOM.

var a_canvas = document.getElementById("a");

Где найти эту строчку var a_canvas = document.getElementById("a");?

[sigma77]

ismakv,

Эту строчку нигде не надо находить. Её надо написать в javascript.

В HTML у тебя есть элемнет <canvas id="a" width="300" height="225"></canvas>. На основе этого html браузер строит DOM, куда в структуру он и заносится. Чтобы иметь возможность управлять этим элементам в скрипт и нужно внести эту строчку.

[Nekromancer]

В JavaScript конечно. Пишите

<script>
var a_canvas = document.getElementById("a");
</script>

И по переменной "a_canvas" у вас размещается HTMLCanvasElement. Или вы не знаете JavaScript? Увы, канвасом без него пользоваться нельзя.

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