How to use vue to determine if the input content is all spaces?

Below I will share with you a method for Vue to determine that the input content is all spaces. It has a good reference value and I hope it will be helpful to everyone.

For example, the data in input and the msg in data are two-way bound.

Then we can judge by splitting msg into arrays with spaces, and then splicing them together to determine the length of the string. If the length is 0, it proves that the input is all spaces, as follows:

msg.split(" ").join("").length = 0

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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