// Array.splice(index, howmany, element_to_add_1,.....,element_to_add_X)
// Reference: http://www.w3schools.com/jsref/jsref_splice.asp
var myArray = [4,5,6];
var idx = visibleIds.indexOf(5); // Find the index
if(idx!=-1) visibleIds.splice(idx, 1); // Remove it! Returns --> [5]
// visibleIds is now --> [4, 6]
Remove a specific element (by value) from an Array.
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