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javascript resize image before upload

Ivan Londono answered on December 22, 2022 Popularity 8/10 Helpfulness 2/10

answer javascript resize image before upload

javascript resize image before upload

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var MAX_WIDTH = 300;
var MAX_HEIGHT = 300;

var width = img.width;
var height = img.height;

// Change the resizing logic
if (width > height) {
    if (width > MAX_WIDTH) {
        height = height * (MAX_WIDTH / width);
        width = MAX_WIDTH;
    }
} else {
    if (height > MAX_HEIGHT) {
        width = width * (MAX_HEIGHT / height);
        height = MAX_HEIGHT;
    }
}

var canvas = document.createElement("canvas");
canvas.width = width;
canvas.height = height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0, width, height);

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript resize-image upload

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Contributed on Dec 22 2022

Ivan Londono

0 Answers Avg Quality 2/10

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