convert string to number angular 2 one way binding

Question

convert the string to number angular 2 one way binding

[longitude]="loc.location.lng">

loc.location.lng is string i need to convert them to number.but still not working as I expect. In interpolation it's working but in this not working. Thanks

Answer 1

Make a function which convert the value to float as its location and return the value.

    ConvertString(value){
return parseFloat(value)
}

Call the function in template

[longitude]="ConvertString(loc.location.lng)"

Answer 2

You could also force the cast by trying this:

[longitude]="+loc.location.lng"

Answer 3

Since you havent provided your source code, its difficult to help you - but if you define longitude as a number, then Angular should cast the string value automatically during binding.

@Input() longitude: number;