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Check image width and height before upload with Javascript
...te the JavaScript Image object.
var image = new Image();
//Set the Base64 string return from FileReader as source.
image.src = e.target.result;
//Validate the File Height and Width.
image.onload = function () {
var height = this.height;
var width = this.width;
if (height > 100 || width &g...
How to change the href for a hyperlink using jQuery
.../www.live.com/')
This will find links where the href exactly matches the string http://www.google.com/. A more involved task might be matching, then updating only part of the href:
$("a[href^='http://stackoverflow.com']")
.each(function()
{
this.href = this.href.replace(/^http:\/\/be...
How to replace innerHTML of a div using jQuery?
...
The html() function can take strings of HTML, and will effectively modify the .innerHTML property.
$('#regTitle').html('Hello World');
However, the text() function will change the (text) value of the specified element, but keep the html structure.
$(...
Struggling trying to get cookie out of response with HttpClient in .net 4.5
...nd can't inject the CookieContainer. This works in .NET Core 2.2:
private string GetCookie(HttpResponseMessage message)
{
message.Headers.TryGetValues("Set-Cookie", out var setCookie);
var setCookieString = setCookie.Single();
var cookieTokens = setCookieString.Split(';');
var first...
Python strptime() and timezones?
...umpfile from a Blackberry IPD backup, created using IPDDump.
The date/time strings in here look something like this
(where EST is an Australian time-zone):
...
How to reuse an ostringstream?
I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state?
...
How to detect internet speed in JavaScript?
...ShowProgressMessage(msg) {
if (console) {
if (typeof msg == "string") {
console.log(msg);
} else {
for (var i = 0; i < msg.length; i++) {
console.log(msg[i]);
}
}
}
var oProgress = document.get...
The simplest possible JavaScript countdown timer? [closed]
...r you need to use the date object.
Calculate the difference.
Format your string.
window.onload=function(){
var start=Date.now(),r=document.getElementById('r');
(function f(){
var diff=Date.now()-start,ns=(((3e5-diff)/1e3)>>0),m=(ns/60)>>0,s=ns-m*60;
r.textConte...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
... Couldn't appropriate documentation be useful here? For example, Scala's StringOps (basically a class of "extension methods" for Java's String) has a method parition(Char => Boolean): (String, String) (takes in predicate, returns tuple of 2 strings). It's obvious what the output is (obviously o...
Relative imports in Python 2.7
...y shouldn't do this at all for single level packages.) If we wanted to be extra-clean, we might rewrite this as, e.g.:
import os, sys
_i = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if _i not in sys.path:
sys.path.insert(0, _i)
else:
_i = None
f...