javascript / beginner
Snippet
Setting Fallback Values with Default Parameters
Default function parameters allow named parameters to be initialized with default values if no value or undefined is passed. This prevents errors when components receive incomplete data.
snippet.js
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function WelcomeMessage(name = 'Guest') {return 'Welcome back, ' + name;}
nextjs
Breakdown
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name = 'Guest'
If the name argument is missing, it defaults to the string 'Guest'.