将字符串转换为数字角2单向绑定 [英] convert string to number angular 2 one way binding

问题描述

将字符串转换为数字角度2的单向绑定

convert the string to number angular 2 one way binding

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

loc.location.lng是字符串，我需要将它们转换为number.，但仍无法按我期望的那样工作. 在插值中，它起作用了，但在这种情况下不起作用. 谢谢

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

推荐答案

使函数将值转换为float并返回值.

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

    ConvertString(value){
return parseFloat(value)
}

调用模板中的函数

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

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