How to Temporarily Hide a Block
Jaap MurreHere we are are setting the display style of a block to 'none' to hide it (but not destroy it). Later, we set it to 'block' to make it visible again. 'block' is the default display style of many HTML elements.
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var b = addblock(20,20,60,60,"yellow");
b.text("Stimulus 1");
await(1000);
b.style('display','none'); // We are hiding the block to make room for instructions
await(1000);
instruction("Now the second part follows");
await(1000);
b.style('display','block'); // 'block' is the default display style of many HTML elements
b.text("Stimulus 2");
await(1000);