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Set initial focus in an Android application
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I was able to gain focus on an AlertDialog and enabling focusableintouchmode helped me get it right. Essentially, here's how: alert.show(); alert.getButton(AlertDialog.BUTTON_POSITIVE).setFocusableInTouchMode(true);alert.getButton(AlertDialog.BUTTON_NEGATI...
How to get the containing form of an input?
...ttribute that points to the form they belong to:
var form = element.form;
alert($(form).attr('name'));
According to w3schools, the .form property of input fields is supported by IE 4.0+, Firefox 1.0+, Opera 9.0+, which is even more browsers that jQuery guarantees, so you should stick to this.
If...
How can I check if string contains characters & whitespace, not just whitespace?
...the string against this regex:
if(mystring.match(/^\s+$/) === null) {
alert("String is good");
} else {
alert("String contains only whitespace");
}
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How to dynamically create CSS class in JavaScript and apply?
...thout dependencies on CSS files. In my case I want lightweight growl-style alert popups out-of-the-box.
– xeolabs
Aug 12 '13 at 7:24
1
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bind event only once
...k functions to an object. For example:
$('#id').bind('click', function(){
alert('hello');
});
$('#id').bind('click', function(){
alert('goodbuy');
});
if you do the above when the object is clicked it will alert hello then goodbye. To make sure only one function is bound to the click event unbi...
How to use OR condition in a JavaScript IF statement?
...xpressions, too:
var thingToTest = "B";
if (/A|B/.test(thingToTest)) alert("Do something!")
Here's an example of regular expressions in general:
var myString = "This is my search subject"
if (/my/.test(myString)) alert("Do something here!")
This will look for "my" within th...
How do I remove objects from a JavaScript associative array?
...d as hashtables/associative arrays. So, the following are the equivalent:
alert(myObj["SomeProperty"]);
alert(myObj.SomeProperty);
And, as already indicated, you "remove" a property from an object via the delete keyword, which you can use in two ways:
delete myObj["SomeProperty"];
delete myObj.S...
How to detect scroll position of page using jQuery
...window).scrollTop() + $(window).height() == $(document).height()) {
alert("bottom!");
// getData();
}
});
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How to delete last character from a string using jQuery?
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Why use jQuery for this?
str = "123-4";
alert(str.substring(0,str.length - 1));
Of course if you must:
Substr w/ jQuery:
//example test element
$(document.createElement('div'))
.addClass('test')
.text('123-4')
.appendTo('body');
//using substring ...
Custom attributes - Yea or nay?
...mainly for the purpose of embedding some extra bits of data for use in javascript code.
14 Answers
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