About copying the phone number in the Address book on the iOS system, and the user's regular expression verifies that the phone number doesn't pass.

This is the cell phone number I copied on the iOS11 system and sent to the nail.

You will find that in addition to the middle of the 2 spaces, the final appearance also has a space, but when you copy it into the editor when the space is not, when you click the left and right arrow keys on the keyboard to move the cursor, you will find that the cursor at the end of the mobile phone number to stop to move, This indicates that there is a non-placeholder symbol at the end of the phone number. I copied the phone number to the console and I printed the length.

Rationale 11-digit phone number plus the middle 2 spaces should be 13 bits, but now the length is 14 bits.

I copied it down and encoded it with a URL.

Before encoding:

After encoding:

There was such a string.

So, all I'm thinking about is this approach.

var str = ' 177 1080 2725? '; var reg = new RegExp ("?", ""); var a = Str.replace (Reg, ""); Console.log (a.length);

Run as follows:

Succeeded, the length of STR became 13. Then the following will be happy to carry out the mobile phone number of the regular verification.

About copying the phone number in the Address book on the iOS system, and the user's regular expression verifies that the phone number doesn't pass.