typescript pair code example

Example 1: key value pairs typescript

var item: {[key: string]: number}

Example 2: typescript key value array

let indexedArray: {[key: string]: number}

let indexedArray: {[key: string]: number} = {
    foo: 123,
    bar: 456
}

indexedArray['foo'] = 12;
indexedArray.foo= 45;

Example 3: data type angular

let decimal: number = 6;
let hex: number = 0xf00d;
let binary: number = 0b1010;
let octal: number = 0o744;
let big: bigint = 100n;Try