UX Engineers at Aptible play an important role in the product development process by blending UX knowledge with technical skills to fill the gap between design and engineering.
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Existential checks are when we have to detect whether or not a variable has a value - that is, checking to see if a variable exists. If the value is null
, undefined
or otherwise falsy, then it fails the check. This usually takes the form of an if-statement.
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Let’s say you’ve created a SaaS application that lets customers keep track of their vendors. Things are going well and you’re adding many customers. One day, a curious customer starts messing around with the IDs in URLs and stumbles across a vendor they shouldn’t have access to. This is Very Bad™, especially if your customers are relying on your application to store sensitive information!
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This is Part 3 of a 3-Part Series. If you missed our last post, click here.
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This is Part 2 of a 3-Part Series. If you missed our last post, click here.
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