I'm trying to implement something with jQuery and Vue.js:
And here is my script part:
<script>
function initVM(result) {
// alert(result.num)
var vm2 = new Vue({
el: '#vm2',
data: {
// ③bind one item of the result as example
rrr: result.num
}
});
$('#vm2').show();
}
$(function() {
var vm = new Vue({
el: '#vm',
data: {
content: ''
},
methods: {
submit: function(event) {
event.preventDefault();
var
$form = $('#vm'),
content = this.content.trim();
// ①post textarea content to backend
$form.postJSON('/api/parse', {
content: content
}, function(err, result) {
if (err) {
$form.showFormError(err);
}
else {
// ②receive a result dictionary
$('#vm').hide();
initVM(result);
}
});
}
}
});
});
</script>
Here is my html part:
<html>
<form id="vm", v-on="submit: submit">
<textarea v-model="content" name="content"></textarea>
<button type="submit">Have a try!</button>
</form>
<div id="vm2" style"diplay:none;">
<!-- ④show the result-->
The result:
{{ rrr }}
</div>
</html>
Here is the definition of postJSON
<script>
// ...
postJSON: function (url, data, callback) {
if (arguments.length===2) {
callback = data;
data = {};
}
return this.each(function () {
var $form = $(this);
$form.showFormError();
$form.showFormLoading(true);
_httpJSON('POST', url, data, function (err, r) {
if (err) {
$form.showFormError(err);
$form.showFormLoading(false);
}
callback && callback(err, r);
});
});
// ...
// _httpJSON
function _httpJSON(method, url, data, callback) {
var opt = {
type: method,
dataType: 'json'
};
if (method==='GET') {
opt.url = url + '?' + data;
}
if (method==='POST') {
opt.url = url;
opt.data = JSON.stringify(data || {});
opt.contentType = 'application/json';
}
$.ajax(opt).done(function (r) {
if (r && r.error) {
return callback(r);
}
return callback(null, r);
}).fail(function (jqXHR, textStatus) {
return callback({'error': 'http_bad_response', 'data': '' + jqXHR.status, 'message': 'something wrong! (HTTP ' + jqXHR.status + ')'});
});
}
</script>
The process can be described as:
- Post the content to backend
- Receive the result and hide the form
- Create a new Vue with the result
- Show the result in a div which is binding with the new Vue instance
Actually, I do receive the result successfully, which is proved by the alert(result.num) statement, but nothing find in vm2's div except The result:
Where is the problem? Or please be free to teach me a simpler approach if there is, because I don't think what I am using is a good one.
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