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How to have click event ONLY fire on parent DIV, not children?
...').on('click', function(e) {
if (e.target !== this)
return;
alert( 'clicked the foobar' );
});
.foobar {
padding: 20px; background: yellow;
}
span {
background: blue; color: white; padding: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.m...
Should I be using object literals or constructor functions?
...c: "a public variable"
thisIsAlsoPublic: function () {
alert(that.thisIsPublic);
}
};
var secret = "this is a private variable"
function secretFunction() { // private method
secret += "!"; // can manipulate private variables
that.thisIsPublic...
Check if object is a jQuery object
...t" },
b = $('body');
if ( a.jquery ) { // falsy, since it's undefined
alert(' a is a jQuery object! ');
}
if ( b.jquery ) { // truthy, since it's a string
alert(' b is a jQuery object! ');
}
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...
if (key in object) or if(object.hasOwnProperty(key)
... title: "High Performance JavaScript",
publisher: "Yahoo! Press"
};
alert(book.hasOwnProperty("title")); //true
alert(book.hasOwnProperty("toString")); //false
alert("title" in book); //true
alert("toString" in book); //true
In this code, hasOwnProperty() returns true when “title”...
jQuery map vs. each
...emory.
For example:
var items = [1,2,3,4];
$.each(items, function() {
alert('this is ' + this);
});
var newItems = $.map(items, function(i) {
return i + 1;
});
// newItems is [2,3,4,5]
You can also use the map function to remove an item from an array. For example:
var items = [0,1,2,3,4,...
jQuery, simple polling example
...
function doPoll(){
$.post('ajax/test.html', function(data) {
alert(data); // process results here
setTimeout(doPoll,5000);
});
}
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...
What is the difference between String.slice and String.substring?
.... Too large values are truncated to the length of the string:
alert ( "testme" .substring (-2)); // "testme", -2 becomes 0
Furthermore, if start > end, the arguments are interchanged, i.e. plot line returns between the start and end:
alert ( "testme" .substring (4, -1)); // "test"
...
jQuery.inArray(), how to use it right?
...= new Array("php", "tutor");
if( $.inArray("php", myArray) !== -1 ) {
alert("found");
}
Reference
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...
Testing if a checkbox is checked with jQuery
...es' : 'ans if no' ;
Example:
var myMath = ( 1 > 2 ) ? 'yes' : 'no' ;
alert( myMath );
Alerts 'no'
If this is helpful, please upvote Stefan Brinkmann's answer.
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...
Jquery Ajax Posting json to webservice
...on/json; charset=utf-8",
dataType: "json",
success: function(data){alert(data);},
error: function(errMsg) {
alert(errMsg);
}
});
The key to avoiding the invalid JSON primitive issue is to pass jQuery a JSON string for the data parameter, not a JavaScript object, so that jQue...