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What is the purpose of backbone.js?
...sues. Global variables can conflict with each other, and are generally bad form. Data attributes stored in the DOM can only be strings, you will have to parse them in and out again. It's difficult to store things like arrays, dates or objects, and to parse your data in a structured form.
Data attri...
How do I find an element that contains specific text in Selenium Webdriver (Python)?
...terface, and across multiple browsers). I have a number of buttons of the form:
10 Answers
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How do I convert an existing callback API to promises?
I want to work with promises but I have a callback API in a format like:
20 Answers
20...
Truncate number to two decimal places without rounding
...ng, match the number up to the second decimal place:
function calc(theform) {
var num = theform.original.value, rounded = theform.rounded
var with2Decimals = num.toString().match(/^-?\d+(?:\.\d{0,2})?/)[0]
rounded.value = with2Decimals
}
<form onsubmit="return calc(this)">...
How do I run a Python script from C#?
...hellExecute = false.
I'm not quite sure how the argument string should be formatted for python, but you will need something like this:
private void run_cmd(string cmd, string args)
{
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = "my/full/path/to/python.exe";
star...
Convert string to title case with JavaScript
...se() + txt.substr(1).toLowerCase();
}
);
}
<form>
Input:
<br /><textarea name="input" onchange="form.output.value=toTitleCase(this.value)" onkeyup="form.output.value=toTitleCase(this.value)"></textarea>
<br />Output:
<br /><text...
How do I automatically scroll to the bottom of a multiline text box?
...the other answers also don't work in this case. One way around it is to perform additional scrolling on the VisibleChanged event:
textBox.VisibleChanged += (sender, e) =>
{
if (textBox.Visible)
{
textBox.SelectionStart = textBox.TextLength;
textBox.ScrollToCaret();
}
...
const char * const versus const char *?
...
@Xeo: your form is even more confusing because it's one transposition away from changing its meaning entirely. const char * is much better because the const is on the complete opposite side.
– R.. GitHub STOP HELPI...
select and update database record with a single queryset
...serializer.is_valid():
my_model_serializer.save()
only in a case in form things!
instance = get_object_or_404(MyModel, id=id)
form = MyForm(request.POST or None, instance=instance)
if form.is_valid():
form.save()
...
Passing multiple variables in @RequestBody to a Spring MVC controller using Ajax
...e a custom annotation, say @JsonArg, with the JSON path like path to the information that you want:
public boolean getTest(@JsonArg("/str1") String str1, @JsonArg("/str2") String str2)
Now write a Custom HandlerMethodArgumentResolver which uses the JsonPath defined above to resolve the actual arg...