CanvasRenderingContext2D: wordSpacing プロパティ

<canvas id="canvas" width="700"></canvas>

const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");
ctx.font = "30px serif";
// Default word spacing
ctx.fillText(`Hello world (既定値: ${ctx.wordSpacing})`, 10, 40);
// Custom word spacing: 10px
ctx.wordSpacing = "10px";
ctx.fillText(`Hello world (${ctx.wordSpacing})`, 10, 90);
// Custom word spacing: 30px
ctx.wordSpacing = "30px";
ctx.fillText(`Hello world (${ctx.wordSpacing})`, 10, 140);