JavaScript Do I need to wrap further waitFor() steps in then()?

As far as I know open() and waitFor() require following steps to be wrapped in then():

casper.click(x('//button[text()="Login"]'));

casper.waitForSelector(x('//span[text()="Navigation"]]'));

casper.capture('1.png');

casper.then(function () {
  casper.capture('2.png'); // Only this shows the navigation
});

When I have multiple waitFor() steps, do I need to chain them myself or do they chain themselves?

casper.click(x('//button[text()="Login"]'));
casper.waitForSelector(x('//span[text()="Navigation"]]'));
casper.waitWhileSelector(x('//span[text()="Loading"]]'));
casper.then(function () {
  casper.capture('1.png'); // Under which condition will this be executed?
});
Answer:1

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