Sohrab Hejazi Sohrab Hejazi - 1 year ago 278
iOS Question

React Native - NSNumber cannot be converted to NSString

Below is part of my react component. I have a props named daysUntil coming into this component which contains a number. In this example it is being pass the number 0 which results in the fontWeight function returning 700

render: function() {
return (
<Text style={}>
style: function() {
return {
fontWeight: this.fontWeight()
fontWeight: function() {
var weight = 7 - this.props.daysUntil;
return weight * 100;

I get the following error:

JSON value '700' of type NSNumber cannot be converted to NSSTring.

I'm assuming this is because font-weight expects the value to be in string format. What's the proper fix for this?

Thank you in advance!

Answer Source

In your fontWeight() function

return weight * 100;

maybe becomes:

var val= weight * 100;
return val.toString();
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