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在 JavaScript 中,你可以使用多种方法将图片 URL 转换为 Base64 编码。以下是使用浏览器内置的 Fetch API 和 FileReader 的示例代码:
使用 Fetch API 和 FileReaderasync function convertImageToBase64(imageUrl) { // Fetch the image from the URL const response = await fetch(imageUrl); // Ensure the response is a blob (binary large object) const blob = await response.blob(); // Create a FileReader to read the blob as a data URL (Base64) const reader = new FileReader(); // Return a promise that resolves when the FileReader reads the blob return new Promise((resolve, reject) => { reader.onloadend = () => { resolve(reader.result); }; reader.onerror = reject; reader.readAsDataURL(blob); }); } // Example usage const imageUrl = 'https://example.com/path/to/image.jpg'; convertImageToBase64(imageUrl...
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