Javascript 验证文本输入以匹配加拿大邮政编码(例如“A1S2S3”)
此处错误为无法输入任何字符:Javascript 验证文本输入以匹配加拿大邮政编码(例如“A1S2S3”),javascript,jquery,regex,Javascript,Jquery,Regex,此处错误为无法输入任何字符: $(document).ready(function() { $('#t').keypress(function(e){ var txt = String.fromCharCode(e.which); console.log(txt + ' : ' + e.which); if(!txt.match(/^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$/)){
$(document).ready(function() {
$('#t').keypress(function(e){
var txt = String.fromCharCode(e.which);
console.log(txt + ' : ' + e.which);
if(!txt.match(/^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$/)){
return false;
}
})
});
模式
属性现在得到广泛支持。因此,您只需将其添加到
您可以这样做:
<input type="text" id="postCode" placeholder="Enter postcode">
<span id="result"></span>
var pattern = /[ABCEFGHJKLMNPRSTVXY][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9]/,
$result = $("#result");
$('#postCode').keyup(function(){
var val = this.value
if(!val.match(pattern)){
$result.text("invalid");
} else {
$result.text("valid");
}
});
var模式=/[ABCEFGHJKLMNPRSTVXY][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9]/,
$result=$(“#result”);
$(“#邮政编码”).keyup(函数(){
var val=此值
如果(!val.match(模式)){
$result.text(“无效”);
}否则{
$result.text(“有效”);
}
});
这里有一个我只想添加一个\s*?在前3个字符和后3个字符之间,为了说明在这两个字符之间写空格的常见用法。就像北极的邮政编码一样:H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H0H。不过,我相信这可能需要一些工作。但是如何限制文本框中与正则表达式不匹配的输入…?在提交表单时验证表单。不要试图马上做这件事。
<input type="text" id="postCode" placeholder="Enter postcode">
<span id="result"></span>
var pattern = /[ABCEFGHJKLMNPRSTVXY][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9][ABCEFGHJKLMNPRSTVWXYZ][0-9]/,
$result = $("#result");
$('#postCode').keyup(function(){
var val = this.value
if(!val.match(pattern)){
$result.text("invalid");
} else {
$result.text("valid");
}
});