23 lines
709 B
TypeScript
23 lines
709 B
TypeScript
const ValidateFileSize = (): void => {
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const fileInputContainers: NodeListOf<HTMLInputElement> =
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document.querySelectorAll("[data-max-size]");
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for (let i = 0; i < fileInputContainers.length; i++) {
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const fileInput = fileInputContainers[i] as HTMLInputElement;
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fileInput.addEventListener("change", () => {
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if (fileInput.files) {
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const fileSize = fileInput.files[0].size;
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if (fileSize > parseFloat(fileInput.dataset.maxSize ?? "0")) {
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alert(fileInput.dataset.maxSizeError);
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// remove the selected file by resetting input to prevent from uploading it.
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fileInput.value = "";
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}
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}
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});
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}
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};
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export default ValidateFileSize;
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