JS regex condition: string consists of more than just spaces?

Question

Angular

Help me write a regular expression. The string can contain spaces, but cannot be all spaces. Those.
' ' // false
'some text' // true

Answer 1

Why use regular expressions here? Everything is much simpler !!str.trim():.
However, the regular expression is also not very complicated: /[^\s]/.test(str).
UPD. Taken from the comments:

the idea was to put a regular expression in the angular form validation pattern

Then try this [pattern]="'.*\\S.*'":

Answer 2

Why not call trim, and if the string is empty, then it was from spaces or empty (you can do an additional check for an empty string before trim).
Regulars need to be used in special cases.