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In typescript there's a way to define string template type. I'll search later and show an example.
Edit: from ChatGPT
In TypeScript, you can define a type for a string template using template literal types, which were introduced in TypeScript 4.1. Template literal types allow you to model specific string patterns and can be very useful for a variety of use cases, such as defining types for specific formatting patterns, routes, or any other string-based API.
Here’s how you can define a type for a string template:
Basic Example
typeMyTemplateType= `prefix-${string}`;
This type accepts any string that starts with prefix- followed by any other string.
More Specific Example
If you want to be more specific about the part that comes after the prefix, you can do so. For example, to define a type for a date string template:
typeDateString= `${number}-${number}-${number}`;
This type matches strings that resemble a date in the format YYYY-MM-DD.
Combining with Union Types
You can also combine template literal types with union types to define a type that accepts multiple specific formats:
This type would accept strings like data-A-1, data-B-100, or data-C-24, where the second part is limited to 'A', 'B', or 'C', followed by a numeric value.
Using with Functions
You can use these types in functions to ensure the inputs match the desired pattern:
functionprocessTemplate(input: SpecificFormat){// Function implementation}// This will be acceptedprocessTemplate("data-A-123");// This will cause a TypeScript errorprocessTemplate("wrong-format-123");
Template literal types are very powerful for creating more descriptive and restrictive type definitions based on string patterns, improving code reliability and developer experience by catching potential mismatches at compile time.
In typescript there's a way to define string template type. I'll search later and show an example.
Edit: from ChatGPT
In TypeScript, you can define a type for a string template using template literal types, which were introduced in TypeScript 4.1. Template literal types allow you to model specific string patterns and can be very useful for a variety of use cases, such as defining types for specific formatting patterns, routes, or any other string-based API.
Here’s how you can define a type for a string template:
Basic Example
This type accepts any string that starts with
prefix-
followed by any other string.More Specific Example
If you want to be more specific about the part that comes after the prefix, you can do so. For example, to define a type for a date string template:
This type matches strings that resemble a date in the format
YYYY-MM-DD
.Combining with Union Types
You can also combine template literal types with union types to define a type that accepts multiple specific formats:
This type would accept strings like
data-A-1
,data-B-100
, ordata-C-24
, where the second part is limited to 'A', 'B', or 'C', followed by a numeric value.Using with Functions
You can use these types in functions to ensure the inputs match the desired pattern:
Template literal types are very powerful for creating more descriptive and restrictive type definitions based on string patterns, improving code reliability and developer experience by catching potential mismatches at compile time.
Originally posted by @shayc in #1 (comment)
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