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is not JSON serializable
...used/viewed straightly in the browser)
import json
from xxx.models import alert
from django.core import serializers
def test(request):
alert_list = alert.objects.all()
tmpJson = serializers.serialize("json",alert_list)
tmpObj = json.loads(tmpJson)
return HttpResponse(json.dumps(t...
How to detect scroll position of page using jQuery
...window).scrollTop() + $(window).height() == $(document).height()) {
alert("bottom!");
// getData();
}
});
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Getting All Variables In Scope
...ind out what else is available by other means by doing:
var n, arg, name;
alert("typeof this = " + typeof this);
for (name in this) {
alert("this[" + name + "]=" + this[name]);
}
for (n = 0; n < arguments.length; ++n) {
arg = arguments[n];
alert("typeof arguments[" + n + "] = " + typ...
Why doesn't JavaScript have a last method? [closed]
Its kinda weird that the JavaScript Array class does not offer a last method to retrieve the last element of an array. I know the solution is simple (Ar[Ar.length-1] ), but, still, this is too frequently used.
...
Image loaded event in for ng-src in AngularJS
...nt, attrs) {
element.bind('load', function() {
alert('image is loaded');
});
element.bind('error', function(){
alert('image could not be loaded');
});
}
};
});
HTML:
<img ng-src="{{src}}" imageonload /...
When should I use Arrow functions in ECMAScript 6?
...,
showMovies: function() {
this.movies.forEach(function(movie) {
alert(this.name + " has acted in " + movie);
});
}
};
Actor.showMovies();
Now what about if the this keyword were inside of method’s function?
Here this would refer to window object than the inner function as its ...
“elseif” syntax in JavaScript
...completely equivalent if the conditions don't return booleans, e.g. if([]) alert('a') produces the alert but switch(true){case []:alert('a')} doesn't. That's because [] is a truthy value but not equal to true, as @zwol explained in this edit.
– Oriol
Mar 27 '16...
How do I pass the this context to a function?
...allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj_a);
Which would alert FOO. The other way around, passing obj_b would alert BAR!!. The differe...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the different ways to create an array:
var a = [], // these are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these...
What are deferred objects?
...r rejected.
Deferred In Action:
$.get("test.php").done(
function(){ alert("$.get succeeded"); }
);
$.get("test.php")
.done(function(){ alert("$.get succeeded"); })
.fail(function(){ alert("$.get failed!"); });
And it seems that the existing ajax() method callbacks can be chained rat...