我想在空输入下面放一个红底而不是所有输入, 我需要修复或添加在这个例子中,使这项工作,
Tests
├── ProjectTests
│ ├── SomeTests.swift
└── LinuxMain.swift

import XCTest
@testable import ProjectTests
XCTMain([
testCase(SomeTests.allTests),
])

$(function() {
$('#submit').on('click', function() {
var myTitle = $('#title').val(),
myLocation = $('#location').val(),
myDescription = $('#description').val(),
myTime = $('#time').val();
if (myTitle == '' || myDescription == '' || myLocation == '' || myTime == '') {
$('#title, #location, #description, #time').css('border-color', 'red');
return false;
}
});
});

答案 0 :(得分:2)
只需在输入上使用每个功能,并检查是否不实:
$(function() {
$('#submit').on('click', function() {
$("input").each(function() {
if ($(this).val() == "") {
$(this).css('border-color', 'red');
}
else $(this).css('border-color', 'green');
});
return false;
});
});

input {
border: none;
padding: 4px 0;
background: 0 0;
text-align: left;
outline: none;
display: block;
width: 100%;
border-bottom: 1px solid #ccc
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type='text' id='title' placeholder='Add title'>
<input type='text' id='location' placeholder='Add location'>
<input type='text' id='description' placeholder='Add description'>
<input type='time' id='time'>
<button id='submit'>submit</button>
&#13;