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list every font a user's browser can display
...tring;
var defaultWidth = {};
var defaultHeight = {};
for (var index in baseFonts) {
//get the default width for the three base fonts
s.style.fontFamily = baseFonts[index];
h.appendChild(s);
defaultWidth[baseFonts[index]] = s.offsetWidth; //width for the d...
How to select the nth row in a SQL database table?
...
Actually, from here php.about.com/od/mysqlcommands/g/Limit_sql.htm, if you wanted to grab the 15th entry wouldn't you do LIMIT 14, 1 (0th is the first element, 1 of length
– committedandroider
Feb 6 '1...
How to use a custom comparison function in Python 3?
...):
numbers = []
for letter in word:
numbers.append(my_alphabet.index(letter))
return numbers
x=['cbaba', 'ababa', 'bbaa']
x.sort(key=custom_key)
Since your language includes multi-character letters, your custom_key function will obviously need to be more complicated. That should g...
How can I post data as form data instead of a request payload?
In the code below, the AngularJS $http method calls the URL, and submits the xsrf object as a "Request Payload" (as described in the Chrome debugger network tab). The jQuery $.ajax method does the same call, but submits xsrf as "Form Data".
...
How to get notified about changes of the history via history.pushState?
...age when it loads, have the background page save that port in a collection indexed by tab ID, and send a message across the relevant port (from the background script to the content script) when the event fires.
share
...
Initializing a list to a known number of elements in Python [duplicate]
...ion. And if you need to check if your collection contains element at given index it is more Pythonic to write:
if anIndex in aDict:
print "cool!"
Than:
if not myList[anIndex] is None:
print "cool!"
Since the latter assumes that no real element in your collection can be None. And if t...
What is the default initialization of an array in Java?
...unt!!
elementData[size++] = e;
return true;
}
public void add(int index, E element) {
rangeCheckForAdd(index);
ensureCapacityInternal(size + 1); // Increments modCount!!
System.arraycopy(elementData, index, elementData, index + 1,size - index);
elementData[index] = element;...
Is there an R function for finding the index of an element in a vector?
In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it?
...
Each for object? [duplicate]
...api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Javascript using the Object.keys() and the Array .map() functions like this
Object.keys(object).map(function(objectKey, index) {
var v...
How to detect if a script is being sourced
...per. (FUNCNAME is a special bash array variable, it should have contiguous indexes corresponding to the call stack, as long as it is never unset.)
function issourced() {
[[ ${FUNCNAME[@]: -1} == "source" ]]
}
(In bash-4.2 and later you can use the simpler form ${FUNCNAME[-1]} instead for the ...