一步将整数转换为字符串和修剪

Question

I'm wondering if it's possible to convert an integer to a string and trim it within one step.

I have the following object:

currentForm

{
id:1,
name:"Abusicus",
value:12203,
period:"Morning",
favoriteSnack:"      "
....
}

I need to find a way to check if the values are empty ("") or have something in it.

Eg. favoriteSnack would be considered empty since it's just white space. Currently I use this to check for white space:

var validInput = currentForm.every( v => currentForm[v] && currentForm[v].trim().length);

But this does not work on fields with values that are integers. I want to do something like this: (Convert the integers to strings and then do a check on all the values)

var validInput = currentForm.every( v => currentForm[v] && currentForm[v].toString().trim().length);

Is something like this possible?

Answer 1

As I see your object is that, an object, not an array, to use every, first I would map all the keys and cast to a string with + '', then check the condition, like this:

var validInput = Object.keys(currentForm)
  .map( v => currentForm[v] + '')
  .every( v => v.trim().length);

jsfiddle in action here

Hope this helps.

Answer 2

For int, value will be 0, and even you convert, it will be "0", not " " Regardless, there is a dirty way to do this by adding "" in front of an int. You can do sonething like this: "" + value;