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a3fe98cf49
* Add if statement for case where shortcutsGroup can be undefined * Use "===" instead of "==". Comparison prefix "==" may cause unexpected type coercion * Remove anonymous function wrapping
20 lines
567 B
JavaScript
20 lines
567 B
JavaScript
window.hyphaChanged = false;
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let textarea = document.querySelector('.edit-form__textarea');
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let form = document.querySelector('.edit-form');
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let warnBeforeClosing = function (ev) {
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if (!window.hyphaChanged) return;
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ev.preventDefault();
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return ev.returnValue = 'Are you sure you want to exit? You have unsaved changes.';
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};
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textarea.addEventListener('input', function () {
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window.hyphaChanged = true;
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});
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form.addEventListener('submit', function () {
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window.hyphaChanged = false;
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});
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window.addEventListener('beforeunload', warnBeforeClosing);
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