mobilevalidation.js

  async mobileValidation(){
    //Mobile format +447XXXXXXXXX
    const regex_format = /^((\+44)7\d{9})$/

    let mobile = this.mobile
    if (!mobile) return;
    mobile = mobile.replace(/ /g, "");
    if (mobile.length == 11 && mobile.substring(0,1) == 0){
      mobile = `+44${mobile.substring(1,)}`
    }
    if (mobile.substring(0, 2) == "44"){
      mobile = `+${mobile}`
    }
    if (regex_format.test(mobile)) {
      this.mobile = mobile
    } else{
      this.mobile = null
    }
    
  }