function toggleFold(index) { let $fold = $w('#fold' + index); let $arrowDown = $w('#arrowDown' + index); let $arrowRight = $w('#arrowRight' + index); // toggle the fold at the index if ($fold.collapsed) { $fold.expand(); $arrowDown.show(); $arrowRight.hide(); } else { $fold.collapse(); $arrowDown.hide(); $arrowRight.show(); } // collapse the other folds [1, 2, 3, 4] .filter(idx => idx !== index) .forEach(idx => { $w('#fold' + idx).collapse(); $w('#arrowDown' + idx).hide(); $w('#arrowRight' + idx).show(); }) } export function headerBox1_onClick(event) { toggleFold(1); } export function headerBox2_onClick(event) { toggleFold(2); } export function headerBox3_onClick(event) { toggleFold(3); } export function headerBox4_onClick(event) { toggleFold(4); }
 
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