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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 ...
How do I iterate over a JSON structure? [duplicate]
...= {
name: 'Amit Kumar',
Age: '27'
};
for (var prop in jsonObject) {
alert("Key:" + prop);
alert("Value:" + jsonObject[prop]);
}
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File Upload without Form
...
url: 'upload.php',
trigger: '#enviar',
success: function(data){
alert('Envio com sucesso');
}
});
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...
What is the (function() { } )() construct in JavaScript?
... return function(x){
a += x;
return a;
};
})();
alert(val(10)); //10
alert(val(11)); //21
Fiddle: http://jsfiddle.net/maniator/LqvpQ/
Second Example:
var val = (function(){
return 13 + 5;
})();
alert(val); //18
...
jQuery: Return data after ajax call success [duplicate]
...AX call, you have to do it like this:
promise.success(function (data) {
alert(data);
});
(See updates below for simplified syntax.)
If your data is available at this point then this function will be invoked immediately. If it isn't then it will be invoked as soon as the data is available.
The...
rails - Devise - Handling - devise_error_messages
....errors.any? %>
<div id="error_explanation">
<div class="alert alert-danger alert-dismissable">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
<p><strong>This form contains <%= pluralize(obj...
How do I check whether a checkbox is checked in jQuery?
... and this is working absolutely fine:
$("#checkkBoxId").attr("checked") ? alert("Checked") : alert("Unchecked");
Note: If the checkbox is checked it will return true otherwise undefined, so better check for the "TRUE" value.
...
How do I load the contents of a text file into a javascript variable?
...client.open('GET', '/foo.txt');
client.onreadystatechange = function() {
alert(client.responseText);
}
client.send();
Normally speaking, though, XMLHttpRequest isn't available on all platforms, so some fudgery is done. Once again, your best bet is to use an AJAX framework like jQuery.
One extra ...
Is it valid to have a html form inside another html form?
...input2");
}
if (input1 == null) {
alert("input1 missing");
}
if (input2 == null) {
alert("input2 missing");
}
}
function myMethod1() {
InitInputs();
alert(input1.value...
How to check if a variable is an integer in JavaScript?
How do I check if a variable is an integer in JavaScript, and throw an alert if it isn't? I tried this, but it doesn't work:
...