How to use a custom function In Typescript
In this approach, we use the Object.entries() method along with a for-loop to convert a dictionary to a string. The Object.entries() method is used to extract the key-value pairs from an object. Here, we create a custom function to iterate through the key-value pairs of the dictionary and formatting each key-value pair into a string.
Syntax
function dictionaryToString(dictionary: Dictionary): string {
return Object.entries(dictionary)
.map(([key, value]) => `${key}: ${value}`)
.join(', ');
}
Example: The below code uses a custom function to convert the TypeScript dictionary to a string.
interface Dictionary {
[key: string]: string;
}
function dictionaryToString(
dictionary: Dictionary
): string {
return Object.entries(dictionary)
.map(([key, value]) => `${key}: ${value}`)
.join(", ");
}
let dictionary: Dictionary = {
name: "w3wiki",
desc: "A computer science portal",
est: "2009",
};
let dictString: string =
dictionaryToString(dictionary);
console.log(dictString);
Output:
"name: w3wiki, desc: A computer science portal, est: 2009"
How to Convert Typescript Dictionary to String ?
In TypeScript, dictionaries are often represented as the objects where keys are associated with the specific values. Converting a TypeScript dictionary to a string is an important task usually when doing API calls where we cast the JSON response from the API to a string.
Below are the ways to convert a TypeScript dictionary to a string:
Table of Content
- Using JSON.stringify() method
- Using a custom function
- Using Object.keys() and Array.prototype.map()
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