The error "Property 'push' does not exist on type '() => void'" occurs with Angular2 and Typescript arrays

What is the method to initialize an empty array in TypeScript?

array: any[];

//To add an item to the array when there is a change
updateArray(){ 
  this.array.push('item');
}

Error TS2339: Property 'push' does not exist on type '() => void'.

Answer №1

The array has not been initialized, therefore test is currently set to undefined. To use it effectively, you should initialize it like this:

test: any[] = [];

Answer №2

Consider these options for your issue:

const example = [];
example.push('a');

OR

const example = [];
const value = 'a';
example.push({ 'value' : value});

You can incorporate it into your function as follows:

addValue(value: string){
    const example = [];
    example.push({ 'value' : value});
}

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