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Looping through the content of a file in Bash
...ine has less than three fields, the missing fields will be set to an empty string
# if the line has more than three fields, `field3` will get all the values, including the third field plus the delimiter(s)
done < input.txt
Reading from the output of another command, using process substitution...
What is the difference between std::array and std::vector? When do you use one over other? [duplicat
...t. Creating large objects on the stack is generally frowned upon, and the extra level of indirection is usually irrelevant. (For example, if you iterate through all of the elements, the extra memory access only happens once at the start of the loop.)
The vector's elements are guaranteed to be con...
Are soft deletes a good idea? [duplicate]
...eleted_date field, instead of an is_deleted field. You get a nice piece of extra data instead of just the bit field.
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answered Apr 1 '10 at 13:02
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How to get JSON response from http.Get
...r myClient = &http.Client{Timeout: 10 * time.Second}
func getJson(url string, target interface{}) error {
r, err := myClient.Get(url)
if err != nil {
return err
}
defer r.Body.Close()
return json.NewDecoder(r.Body).Decode(target)
}
Example use:
type Foo struct {
...
How to “properly” create a custom object in JavaScript?
...languages, albeit with slightly clumsier syntax. You can sprinkle in a few extra features if you like. Maybe you want makeSubclass to take and remember a class name and provide a default toString using it. Maybe you want to make the constructor detect when it has accidentally been called without the...
Append text to input field
...are two options. Ayman's approach is the most simple, but I would add one extra note to it. You should really cache jQuery selections, there is no reason to call $("#input-field-id") twice:
var input = $( "#input-field-id" );
input.val( input.val() + "more text" );
The other option, .val() can ...
What are the differences between “=” and “
...on); and when isolated from surrounding logical structure, by braces or an extra pair of parentheses.
A confession: I lied earlier. There is one additional difference between the = and <- operators: they call distinct functions. By default these functions do the same thing but you can overrid...
Drop data frame columns by name
...comma, you use the "list" way of selecting, which means that even when you extract a single column, you still get a data frame returned. If you use the "matrix" way, as you do, you should be aware that if you only select a single column, you get a vector instead of a data frame. To avoid that, you n...
Remove last character of a StringBuilder?
When you have to loop through a collection and make a string of each data separated by a delimiter, you always end up with an extra delimiter at the end, e.g.
...
Format XML string to print friendly XML string
I have an XML string as such:
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