Symbols 2/3
Symbol() Function Description:
We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.
The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:
1234let firstName = Symbol('Michael'); console.log(firstName.toString()); let lastName = Symbol('Clarke'); console.log(lastName.toString());
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Create a symbol with the value key and store it in the variable password. Output the result.
Soluzione
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Can you explain what the output of this code will be?
What is the purpose of using Symbol in JavaScript?
Can you show how to use these symbols as object keys?
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Symbol() Function Description:
We can provide a description to the Symbol() function as an optional argument. This description will make our symbols more clear.
The following example creates two symbols: firstName and lastName with values Michael and Clarke respectively:
1234let firstName = Symbol('Michael'); console.log(firstName.toString()); let lastName = Symbol('Clarke'); console.log(lastName.toString());
Swipe to start coding
Create a symbol with the value key and store it in the variable password. Output the result.
Soluzione
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