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How to use FormData for AJAX file upload?
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For correct form data usage you need to do 2 steps.
Preparations
You can give your whole form to FormData() for processing
var form = $('form')[0]; // You need to use standard javascript object here
var formData = new For...
PHP - Modify current object in foreach loop
...f it is possible to edit the current object that's being handled within a foreach loop
2 Answers
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Saving enum from select in Rails 4.1
...to_a is redundant. Alternatively the select helper method takes a 2D array for options so you can just use to_a.
– xander-miller
Nov 23 '15 at 19:15
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How to read json file into java with simple JSON library
...le.
As you say, the outermost layer of your JSON blob is an array. Therefore, your parser will return a JSONArray. You can then get JSONObjects from the array ...
JSONArray a = (JSONArray) parser.parse(new FileReader("c:\\exer4-courses.json"));
for (Object o : a)
{
JSONObject person ...
Selecting all text in HTML text input when clicked
... To make that more general, you could use this.id as the argument for the click handler. Better yet, you could eliminate the getElementById entirely and pass this as an argument.
– Asad Saeeduddin
Dec 14 '12 at 23:05
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Can I apply a CSS style to an element name?
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For future googlers, FYI, the method in the answer by @meder , can be used with any element that has a name attribute, so lets say theres an <iframe> with the name xyz then you can use the rule as belows.
iframe[name=x...
How do I clear stuck/stale Resque workers?
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None of these solutions worked for me, I would still see this in redis-web:
0 out of 10 Workers Working
Finally, this worked for me to clear all the workers:
Resque.workers.each {|w| w.unregister_worker}
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SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...gin using JavaScript, it would be a huge security flaw if you could do it. For the same-origin policy browsers block scripts trying to access a frame with a different origin.
Origin is considered different if at least one of the following parts of the address isn't maintained:
protocol://hostname:po...
WebAPI Multiple Put/Post parameters
...r class....
}
using referance
using Newtonsoft.Json.Linq;
Use Request for JQuery Ajax
var customer = {
"Name": "jhon",
"Id": 1,
};
var product = {
"Name": "table",
"CategoryId": 5,
"Count": 100
};
var employee = {
"Name": "Fatih",
"Id": 4,
};
var myData = {};
myDat...
jQuery vs document.querySelectorAll
...e power of jQuerys Selector engine without the nasty overhead.
EDIT:
Just for the record, I'm a huge vanilla JavaScript fan. Nonetheless it's a fact that you sometimes need 10 lines of JavaScript where you would write 1 line jQuery.
Of course you have to be disciplined to not write jQuery like thi...