如何检查输入是否与 jQuery 的字符串模式匹配
How to check if on input matches a string pattern with jQuery
我的目标是检查电子邮件输入字段(当用户在其中输入字符时)是否与模式匹配。到目前为止,这是我的工作示例,但是当它到达实际匹配“同时”输入过程的地步时,我感到卡住了...
下面是我正在尝试利用的工作示例...
//...
var $attemail = mtarget.find(".my-email-field"); //INPUT
function validateEmail(email) {
var re = /\S+@\S+\.\S+/;
if (re.test(email) == false) {
console.log('Email field is not valid');
//issueFlag.push(noticeEmail);
}
}
function checkEmailOnType() {
$attemail.on("input", function(){
var $characters = jQuer(this).val();
if ($characters.toLowerCase()) {
//IF MY CHARACTER TYPING IS PASSING OR NOT PASSING
//MY validateEmail() FUNCTION ABOVE, HOW DO WE SAY THAT?
}
});
}
//...
为您的函数添加一个 return value。你的 returns undefined
你可以将 return 更改为 re.test(email)
.
的结果
//...
var $attemail = mtarget.find(".my-email-field"); //INPUT
function validateEmail(email) {
var re = /\S+@\S+\.\S+/;
return re.test(email)
}
//function checkEmailOnType() {
$attemail.on("input", function(){
var $characters = jQuer(this).val();
if ($characters.toLowerCase()) {
//IF MY CHARACTER TYPING IS PASSING OR NOT PASSING
//MY validateEmail() FUNCTION ABOVE, HOW DO WE SAY THAT?
if(validateEmail($characters) == false){
console.log('Email field is not valid')
}
}
});
//}
//...
我的目标是检查电子邮件输入字段(当用户在其中输入字符时)是否与模式匹配。到目前为止,这是我的工作示例,但是当它到达实际匹配“同时”输入过程的地步时,我感到卡住了...
下面是我正在尝试利用的工作示例...
//...
var $attemail = mtarget.find(".my-email-field"); //INPUT
function validateEmail(email) {
var re = /\S+@\S+\.\S+/;
if (re.test(email) == false) {
console.log('Email field is not valid');
//issueFlag.push(noticeEmail);
}
}
function checkEmailOnType() {
$attemail.on("input", function(){
var $characters = jQuer(this).val();
if ($characters.toLowerCase()) {
//IF MY CHARACTER TYPING IS PASSING OR NOT PASSING
//MY validateEmail() FUNCTION ABOVE, HOW DO WE SAY THAT?
}
});
}
//...
为您的函数添加一个 return value。你的 returns undefined
你可以将 return 更改为 re.test(email)
.
//...
var $attemail = mtarget.find(".my-email-field"); //INPUT
function validateEmail(email) {
var re = /\S+@\S+\.\S+/;
return re.test(email)
}
//function checkEmailOnType() {
$attemail.on("input", function(){
var $characters = jQuer(this).val();
if ($characters.toLowerCase()) {
//IF MY CHARACTER TYPING IS PASSING OR NOT PASSING
//MY validateEmail() FUNCTION ABOVE, HOW DO WE SAY THAT?
if(validateEmail($characters) == false){
console.log('Email field is not valid')
}
}
});
//}
//...