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JavaScript global event mechanism
...: " + url + "\nline: " + line + extra);
// TODO: Report this error via ajax so you can keep track
// of what pages have JS issues
var suppressErrorAlert = true;
// If you return true, then error alerts (like in older versions of
// Internet Explorer) will be suppressed.
re...
What's the point of the X-Requested-With header?
...- this can prevent CSRF attacks because this header cannot be added to the AJAX request cross domain without the consent of the server via CORS.
Only the following headers are allowed cross domain:
Accept
Accept-Language
Content-Language
Last-Event-ID
Content-Type
any others cau...
Post data to JsonP
... clearInterval(timerId);
tmpDiv.remove();
$.ajax({
url: queryStatusUrl,
data: queryStatusData,
dataType: "jsonp",
type: "GET",
success: queryStatusSuccessFunc
});
}
...
Pass a PHP array to a JavaScript function [duplicate]
...n cases where you need to parse out an object from JSON-string (like in an AJAX request), the safe way is to use JSON.parse(..) like the below:
var s = "<JSON-String>";
var obj = JSON.parse(s);
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How can I detect whether an iframe is loaded?
...ttr('src', 'https://heera.it');
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id='click'>click me</button>
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
jsfiddl...
JQuery to load Javascript file dynamically
...nt").click(function() {
if(typeof TinyMCE === "undefined") {
$.ajax({
url: "tinymce.js",
dataType: "script",
cache: true,
success: function() {
TinyMCE.init();
}
});
}
});
The getScript() function a...
Get current date/time in seconds
...oor(new Date().getTime() / 1000)); // 1443535752
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
jQuery
console.log(Math.floor($.now() / 1000)); // 1443535752
<script src="https://ajax.googleapis.com/ajax/libs/jquer...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...ng_room/brightness/get
factory/sensor/machine_001/status/online
通配符使用规则：
// 单级通配符匹配
call UrsPahoMqttClient1.Subscribe "home/+/temperature" // 匹配 home/livingroom/temperature
// 多级通配符匹配
call UrsPahoMqttClient1.Subscribe "factory/#" // 匹配 factory...
How can I convince IE to simply display application/json rather than offer to download it?
While debugging jQuery apps that use AJAX, I often have the need to see the json that is being returned by the service to the browser. So I'll drop the URL for the JSON data into the address bar.
...
Merge 2 arrays of objects
...'name');
console.log(arr1);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.core.min.js"></script>
[{name: "lang", value: "German"}, {name: "age", value: "18"}, {name : "childs", value: '5'}]
...