today i was writing a script with Ionic 2 and angular 2 using typescript, and when i displayed the value of the array with the following html i got a lot of null properties.

null
null
null
null
null
...

to solve this problem just change the array to an object, or if you have an array, change it to an object: for example, if you have initially diclared the variable as an array:

my string = [];
CHANGE TO: my string = {};

OR

my string = {};
CHANGE TO: my string = [];

thats what i did.