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Validate that a string is a positive integer
...hose in a non-standard (but formerly-allowed) way that says a leading zero means octal (base 8), e.g "010" => 8. Once you've validated the number, you can safely use parseInt(str, 10) to ensure that it's parsed as decimal (base 10). parseInt would ignore garbage at the end of the string, but we'v...
How do I integrate Ajax with Django applications?
...fense, but if you did you wouldn't be asking).
Django is server-side. It means, say a client goes to a URL, you have a function inside views that renders what he sees and returns a response in HTML. Let's break it up into examples:
views.py:
def hello(request):
return HttpResponse('Hello Wor...
How to save MySQL query output to excel or .txt file? [duplicate]
... to deduce writing permissions? Is there a way to bypass this (and I don't mean by creating a new system user).
– Thalis K.
Jan 28 '15 at 9:26
3
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Working with select using AngularJS's ng-options
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This is not how it is meant to be used. ng-model should point to another variable on your scope, not related with make. See the example in docs.angularjs.org/api/ng/directive/ngOptions
– Dmitri Zaitsev
Apr 24...
Can a for loop increment/decrement by more than one?
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A for loop:
for(INIT; TEST; ADVANCE) {
BODY
}
Means the following:
INIT;
while (true) {
if (!TEST)
break;
BODY;
ADVANCE;
}
You can write almost any expression for INIT, TEST, ADVANCE, and BODY.
Do note that the ++ operators and variants are operat...
Uploading Files in ASP.net without using the FileUpload server control
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I take that to mean they don't want to use ASP.NET controls. Which includes the HtmlInputFile control.
– ahwm
Aug 22 '18 at 21:55
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How can I autoplay a video using the new embed code style for Youtube?
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what do you mean by closed captioning?
– WasiF
Apr 8 '19 at 11:16
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Is there a unique Android device ID?
...e it can be 'null', we can check for 'null' and change its value, but this means it will no longer be unique.
If you have a user with a factory reset device, the value may have changed or altered on the rooted device so there may be duplicates entries if you are tracking user installs.
WLAN MAC Add...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
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This means that some of my users will have a more slow experience right?
– Arnold Roa
May 16 '18 at 10:58
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How to skip to next iteration in jQuery.each() util?
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What they mean by non-false is:
return true;
So this code:
var arr = ["one", "two", "three", "four", "five"];
$.each(arr, function(i) {
if (arr[i] == 'three') {
return true;
}
console.log(arr[i]);
});
<scrip...