When using TypeScript, which option is the correct syntax?
[string] vs string[]
public searchOption: [string] = ['date'];
public searchOption: string[] = ['date'];
When using TypeScript, which option is the correct syntax?
[string] vs string[]
public searchOption: [string] = ['date'];
public searchOption: string[] = ['date'];
One example involves using a tuple as the first element, while the second element consists of an array of strings.
Here is an example of how you can achieve this with tuples:
const exampleTuple: [string, number] = ['value', 10];
The correct answer is actually the second one. For more information, you can refer to this link: https://www.typescriptlang.org/docs/handbook/basic-types.html
When creating an array of strings, both options may appear to function similarly. Nevertheless, the better choice is the second one.
The initial option is typically used for constructing Tuples, as demonstrated below.
const searchOption: [string, number] = ['date', 1];
While they may seem similar at first glance, these two are actually different. It has been pointed out by others that the first one is a tuple, and the second one is an array of strings.
If your array contains multiple strings (for example, ['one', 'two', 'three']), then the correct choice is the second one (string[]).
However, if, as in your original post, you only have one string in the array, then the correct choice is the first one ([string]).
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