CanvasRenderingContext2D.strokeStyle

Baseline Widely available

This feature is well established and works across many devices and browser versions. Itâs been available across browsers since Ð¸ÑÐ»Ñ 2015 Ð³..

Ð¡Ð¼Ð¾ÑÑÐ¸ÑÐµ ÑÐ°ÐºÐ¶Ðµ Ð³Ð»Ð°Ð²Ñ Applying styles and color Ð² Canvas Tutorial.

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ctx.strokeStyle = color;
ctx.strokeStyle = gradient;
ctx.strokeStyle = pattern;

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color: String ÑÑÑÐ¾ÐºÐ° ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ°Ñ ÑÐ²ÐµÑ Ð² ÑÐ¾ÑÐ¼Ð°ÑÐµ, Ð¿Ð¾Ð´Ð´ÐµÑÐ¶Ð¸Ð²Ð°ÑÑÐ¸Ð¼ÑÑ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ¾Ð¼ CSS (<color>).
gradient: ÐÐ±ÑÐµÐºÑ ÐºÐ»Ð°ÑÑÐ° CanvasGradient (Ð»Ð¸Ð½ÐµÐ¹Ð½ÑÐ¹ Ð¸Ð»Ð¸ ÐºÑÑÐ³Ð¾Ð²Ð¾Ð¹ Ð³ÑÐ°Ð´Ð¸ÐµÐ½Ñ ).
pattern: ÐÐ±ÑÐµÐºÑ ÐºÐ»Ð°ÑÑÐ° CanvasPattern (Ð¿Ð¾Ð²ÑÐ¾ÑÑÑÑÐµÐµÑÑ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ðµ).

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HTML

html

<canvas id="canvas"></canvas>

JavaScript

var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");

ctx.strokeStyle = "blue";
ctx.strokeRect(10, 10, 100, 100);

<canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas>
<div class="playable-buttons">
  <input id="edit" type="button" value="Edit" />
  <input id="reset" type="button" value="Reset" />
</div>
<textarea id="code" class="playable-code">
ctx.strokeStyle = "blue";
ctx.strokeRect(10, 10, 100, 100);</textarea>

var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var textarea = document.getElementById("code");
var reset = document.getElementById("reset");
var edit = document.getElementById("edit");
var code = textarea.value;

function drawCanvas() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  eval(textarea.value);
}

reset.addEventListener("click", function () {
  textarea.value = code;
  drawCanvas();
});

edit.addEventListener("click", function () {
  textarea.focus();
});

textarea.addEventListener("input", drawCanvas);
window.addEventListener("load", drawCanvas);

var ctx = document.getElementById("canvas").getContext("2d");
for (var i = 0; i < 6; i++) {
  for (var j = 0; j < 6; j++) {
    ctx.strokeStyle =
      "rgb(0," +
      Math.floor(255 - 42.5 * i) +
      "," +
      Math.floor(255 - 42.5 * j) +
      ")";
    ctx.beginPath();
    ctx.arc(12.5 + j * 25, 12.5 + i * 25, 10, 0, Math.PI * 2, true);
    ctx.stroke();
  }
}

<canvas id="canvas" width="150" height="150"></canvas>

Ð ÐµÐ·ÑÐ»ÑÑÐ°Ñ Ð²ÑÐ³Ð»ÑÐ´Ð¸Ñ ÑÐ°Ðº:

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Specification
HTML # dom-context-2d-strokestyle-dev

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Ð¡Ð¼Ð¾ÑÑÐ¸ÑÐµ ÑÐ°ÐºÐ¶Ðµ

ÐÐ½ÑÐµÑÑÐµÐ¹Ñ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ð¹ Ð´Ð°Ð½Ð½Ð¾Ðµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð¾: CanvasRenderingContext2D
CanvasGradient
CanvasPattern

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