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Is JSON Hijacking still an issue in modern browsers?
...bed in http://www.thespanner.co.uk/2011/05/30/json-hijacking/:
(http://jsfiddle.net/ph3Uv/2/)
var capture = function() {
var ta = document.querySelector('textarea')
ta.innerHTML = '';
ta.appendChild(document.createTextNode("Captured: "+JSON.stringify(arguments)));
return arguments;
...
jQuery append() vs appendChild()
...ppend.
You can pass multiple arguments.
var elm = document.getElementById('div1');
elm.append(document.createElement('p'),document.createElement('span'),document.createElement('div'));
console.log(elm.innerHTML);
<div id="div1"></div>
...
In Postgresql, force unique on combination of two columns
...
CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NULL,
unique (col1, col2)
)
autoincrement is not postgresql. You want a serial.
If col1 and col2 make a unique and can't be null then they make a good prim...
Using Rails serialize to save hash to database
I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to accommodate this new column:
...
How to clear/remove observable bindings in Knockout.js?
...ement to dispose of the in memory bound objects?
var element = $('#elementId')[0];
ko.cleanNode(element);
Then applying the knockout bindings again on just that element with your new view models would update your view binding.
...
JavaScript: how to change form action attribute value based on selection?
...
Simple and easy in javascipt
<script>
document.getElementById("selectsearch").addEventListener("change", function(){
var get_form = document.getElementById("search-form") // get form
get_form.action = '/search/' + this.value; // assign value
});
</script>
...
Why does viewWillAppear not get called when an app comes back from the background?
...factoring you can do to achieve the same effect might be as follows:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self doMyLayoutStuff:self];
}
- (void)doMyLayoutStuff:(id)sender {
// stuff
}
Then also you trigger doMyLayoutStuff from the appropriate noti...
Objective-C class -> string like: [NSArray className] -> @“NSArray”
... even go back the other way:
Class arrayClass = NSClassFromString (name);
id anInstance = [[arrayClass alloc] init];
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Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...
Notice how the output of
SHOW GRANTS FOR 'root'@'localhost';
did not say 'ALL PRIVILEGES' but had to spell out what root@localhost has.
GRANT ALL PRIVILEGES will fail, because a user can not grant what he/she does not have,
and the server seem to think something is not here ...
Now, w...