function draw(){
const ctx = document.getElementById('canvas').getContext('2d')
const img = new Image()
img.src = 'https://mdn.mozillademos.org/files/5397/rhino.jpg'
img.onload = ()=>{
for(let i=0;i<3;i++){
for(let j=0;j<2;j++){
ctx.drawImage(img,i*100,j*75, 100,75)
}
}
}
}
draw()
<canvas id="canvas"></canvas>