Adding a record to a multi-dimensional array in TypeScript, for example with an Array of numbers, pairs of numbers, and pairs of strings and numbers

In my angular component file, I am utilizing 'angular-highcharts' to create a high chart for the HTML view page. To do this, I have defined an array as shown below in the component.ts file to store and organize the data.

public myData : Array< number | [number, number] | [string, number]>;

When attempting to add data to the array using the push method like so:

this.myData.push(12540 ,2488);

The code compiles without errors, but when running it, I encounter the following runtime error:

core.js:1624 ERROR TypeError: Cannot read property 'push' of undefined
at third-page.component.ts:136
at Array.forEach (<anonymous>)
at SafeSubscriber._next (third-page.component.ts:118)
at

Do you have any suggestions on the best approach to insert data into the myData array that would allow me to successfully bind it to the chart?

angulartypescriptmultidimensional-arrayhighcharts

Answer №1

Make sure to initialize the array before using it. Here’s an example:

let data: (number | [number, number] | [string, number])[] = [];

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