As I delve into TypeScript in an effort to enhance my programming skills, I have encountered the use of exclamation marks when defining variables. An example of this can be seen in the following code snippet:
protected _db!: CheckpointDB
As I delve into TypeScript in an effort to enhance my programming skills, I have encountered the use of exclamation marks when defining variables. An example of this can be seen in the following code snippet:
protected _db!: CheckpointDB
The value is defined, therefore it cannot be null
or undefined
.
Commonly referred to as: "The non-null assertion operator"
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