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Access event to call preventdefault from custom function originating from onclick attribute of tag
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I believe you can pass in event into the function inline which will be the event object for the raised event in W3C compliant browsers (i.e. older versions of IE will still require detection inside of your event handler functio...
How can I detect if this dictionary key exists in C#?
I am working with the Exchange Web Services Managed API, with contact data. I have the following code, which is functional , but not ideal:
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How to get subarray from array?
I have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex) , that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4] .
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How to check if an array value exists?
How can I check if $something['say'] has the value of 'bla' or 'omg' ?
12 Answers
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Laravel: Get base url
Simple question, but the answer seems quite hard to come by. In Codeigniter, I could load the url helper and then simply do
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Dynamically access object property using variable
I'm trying to access a property of an object using a dynamic name. Is this possible?
16 Answers
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How to remove last n characters from every element in the R vector
...hat I would do. I hope it's what you're looking for.
char_array = c("foo_bar","bar_foo","apple","beer")
a = data.frame("data"=char_array,"data2"=1:4)
a$data = substr(a$data,1,nchar(a$data)-3)
a should now contain:
data data2
1 foo_ 1
2 bar_ 2
3 ap 3
4 b 4
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A variable modified inside a while loop is not remembered
In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the sense that its value is remembered after the if statement. However, when I set the same variable to the value 2 inside an if which is inside a while statement, it's forgotten af...
How to prevent form from being submitted?
I have a form that has a submit button in it somewhere.
10 Answers
10
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
Is it possible for a computer to "learn" a regular expression by user-provided examples?
10 Answers
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