Add value in Object Ionic 2

Question

I have an Object:

public countriesSignup = [{
    name: 'countries',
    options: [
        {text: 'Customer', value: '1'},
    ]
}];

My Final Object must be:

countriesSignup = [{
    name: 'countries',
    options: [
        {text: 'Customer', value: '1'},
        {text: 'Contractor', value: '2'},
    ]
}];

How i can add from Controller? I try this:

this.countriesSignup['options'] = [{text: 'Contractor', value: '2'}] ;

Answer 1

您可以直接使用.push因为options是一个数组

this.countriesSignup[0].options.push({text: 'Contractor', value: '2'});

Answer 2

Mistake#1

You are using Array of object, so you have to mention index also

So it should be

this.countriesSignup[0]

Mistake #2 Since options is array, you should use push

countriesSignup[0].options.push({})