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How to search file text for a pattern and replace it with a given value
...opy this code into your programs.
Here's a quick short way to do it.
file_names = ['foo.txt', 'bar.txt']
file_names.each do |file_name|
text = File.read(file_name)
new_contents = text.gsub(/search_regexp/, "replacement string")
# To merely print the contents of the file, use:
puts new_co...
Set initial focus in an Android application
... android:focusableInTouchMode="true"
android:layout_width="0px"
android:layout_height="0px" >
<requestFocus />
</LinearLayout>
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impro...
Relative frequencies / proportions with dplyr
...
Try this:
mtcars %>%
group_by(am, gear) %>%
summarise(n = n()) %>%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vigne...
When and why to 'return false' in JavaScript?
...s no "in FileNotFound", it's a TDWTF in-joke: thedailywtf.com/Articles/What_Is_Truth_0x3f_.aspx
– Chris Jester-Young
May 13 '09 at 2:40
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...
Hide separator line on one UITableViewCell
...er}) {
cell.separatorInset = UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, CGFLOAT_MAX);
}
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Coffeescript — How to create a self-initiating anonymous function?
...ty or useful information to the other answer.
– still_dreaming_1
Feb 5 '15 at 22:37
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How to customize ?
...seinput">El Cucaratcha, for example</button>
<span id="selected_filename">No file selected</span>
<script>
$(document).ready( function() {
$('#falseinput').click(function(){
$("#fileinput").click();
});
});
$('#fileinput').change(function() {
$('#selected_filena...
When exactly is it leak safe to use (anonymous) inner classes?
...sCheese()
{//Gotta have a Factory to make my holes
LeakFactory _holeDriller = new LeakFactory()
// Now, let's get the holes and store them.
myHoles = new Leak[1000];
for (int i = 0; i++; i<1000)
{//Store them in the class member
myHoles[i] = _h...
Throw HttpResponseException or return Request.CreateErrorResponse?
...t; Handlers
{
get
{
return _filterHandlers;
}
}
private readonly ConcurrentDictionary<Type, Tuple<HttpStatusCode?, Func<Exception, HttpRequestMessage, HttpResponseMessage>>> _filterHandlers = new Concurrent...
How can I get list of values from dict?
...
You can use * operator to unpack dict_values:
>>> d = {1: "a", 2: "b"}
>>> [*d.values()]
['a', 'b']
or list object
>>> d = {1: "a", 2: "b"}
>>> list(d.values())
['a', 'b']
...