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How to calculate date difference in JavaScript?
... + ' hours');
var diffD = diffH / 24;
console.log(diffD + ' days');
alert(diffD);
}
//alert(getDateDiff('10/18/2013','10/14/2013'));
</script>
</head>
<body>
<input type="button"
onclick="getDateDiff('10/18/2013','10/14/2013')"
value="clickHere()" />...
Can't append element
... is:
It's 100% working.
Just add something inside the script tag such as alert('voila!');. The right question you might want to ask perhaps, "Why didn't I see it in the DOM?".
Karl Swedberg has made a nice explanation to visitor's comment in jQuery API site. I don't want to repeat all his words, ...
Multiple arguments vs. options object
...sObject:...,
fromIndex:...,
toIndex:...
}
function1(options){
alert(options.nodeList);
}
function2(options){
alert(options.fromIndex);
}
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View list of all JavaScript variables in Google Chrome Console
...ionend","onsearch","getSelection","print","stop","open","showModalDialog","alert","confirm","prompt","find","scrollBy","scrollTo","scroll","moveBy","moveTo","resizeBy","resizeTo","matchMedia","requestAnimationFrame","cancelAnimationFrame","webkitRequestAnimationFrame","webkitCancelAnimationFrame","w...
What does immutable mean?
...ou instantiate the object, you can't change its properties. In your first alert you aren't changing foo. You're creating a new string. This is why in your second alert it will show "foo" instead of oo.
Does it mean, when calling methods on
a string, it will return the modified
string, but...
unique object identifier in javascript
...e Object.prototype.a then "a" will be visible when you do for (prop in {}) alert(prop); So you have to make a compromise between augmenting Object.prototype and being able to iterate through record like objects using a for..in loop. This is a serious problem for libraries
– A...
Make a number a percentage
...o need for anything fancy:
var number1 = 4.954848;
var number2 = 5.9797;
alert(Math.floor((number1 / number2) * 100)); //w00t!
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Send POST data using XMLHttpRequest
...nges.
if(http.readyState == 4 && http.status == 200) {
alert(http.responseText);
}
}
http.send(params);
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...
window.onload vs $(document).ready()
...ers .
Correct code:
window.addEventListener('load', function () {
alert('Hello!')
})
window.addEventListener('load', function () {
alert('Bye!')
})
Invalid code:
window.onload = function () {
alert('Hello!') // it will not work!!!
}
window.onload = function () {
...
How do I get the fragment identifier (value after hash #) from a URL?
...w.site.com/index.php#hello";
var hash = url.substring(url.indexOf('#')+1);
alert(hash);
SEE DEMO
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