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I have following code
private readonly direction :any ={
east : "1",
west : "2"
}
private readonly validDirections:Set<Object>= new Set(Object.values(this.direction));
But typescript compiler shows an error saying 'Set' only refers to a type, but is being used as a value here. Also it shows 'values' does not exist in type Object Constructor
I am using typescript 2.1.5.
highlights from tsconfig.json:
"target": "es6"
"lib": ["dom","es6","es7.object"],
What am i doing wrong here? How to solve this issue?
980
Use Set type and new keyword to create a Set in typescript. let directions = new Set<string>(); To create a Set with initial values we can pass the values in an array.
TypeScript set is a new data structure added in ES6 version of JavaScript. It allows us to store distinct data (each value occur only once) into the List similar to other programming languages. Sets are a bit similar to maps, but it stores only keys, not the key-value pairs.
You can create a JavaScript Set by: Passing an Array to new Set() Create a new Set and use add() to add values. Create a new Set and use add() to add variables.
In TypeScript, we can use the forEach() method to loop or iterate over set entries. A Set is a data structure that contains unique entries without duplicates.
You may need to fix your configuration like following:
"lib": ["dom","es2016","es2017.object"],
answered Oct 29 '22 15:10
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