If I have a list of items in an array that represent the names of modules:
var phaseNames:Array = new Array("directorsPrep", "checkIO", "pickupPhoto", "pickupPhoto", "syncing", "dailies", "pictureEdit", "soundEdit", "soundMix", "colorCorrection", "finishing");
and I want to go through each one of these and call a function within each instance of each module, how would I go about doing so. So far, I have the following:
private function changeStartViewDate(numDays:Number):void
{
startViewDate = rightDate(startViewDate.getMonth(), startViewDate.getDate() + numDays, startViewDate.getFullYear());
getDateInfo();
determineCalendarWeek();
var phaseNames:Array = new Array("directorsPrep", "checkIO", "pickupPhoto", "pickupPhoto", "syncing", "dailies", "pictureEdit", "soundEdit", "soundMix", "colorCorrection", "finishing");
for (var i:int = 0; i < wholeProject.length; i++)
{
wholeProject[i].moveProject(Number((1-2) * numDays));
}
for (i = 0; i < phaseNames.length; i++)
{
for (var j:int = 0; j < [phaseNames[i]].length; j++)
{
[phaseNames[i]].movePhase(Number((-1) * numDays));
}
}
}
But when I try to save it, I get the following error:
1084: Syntax Error: expecting identifier before dot.
It's telling me the error is on the following line:
[phaseNames[i]].movePhase(Number((-1) * numDays));
I tried doing something like the following, but it didn't work:
[phaseNames[i].movePhase(Number((-1) * numDays))];
The above attempt of trying to figure this out gave me the following error
1064: Invalid metadata.
Any help would be appreciated.
I am going to assume that:
Each value of your phaseNames array references an actual instance of some other class [and not the name of the class]
The instance defined in the phaseNames array is a child of the current class.
You should be able to do something like this:
var childName = phaseNames[0];
var myChild : myObjectType = this[childName];
// then call function
myChild.doStuff();
This approach is not dissimilar to what you have; I'm just doing it in more lines. I'm also adding the this keyword to access the child.
I bet if you tried this, directly, it would work:
this[phaseNames[i]].movePhase(Number((-1) * numDays));
I have to wonder why you haven't created an array of all the instances instead of an array of all the variables names that point to the instances.
Related
I have constructed my crossfilter-setup a bit different than in most examples I can find, namely:
I have data-array d with multiple data-sources included, among which is data1.
var cf = crossfilter(d3.range(0, d.data1.length));
Then I construct my dims like:
var dim = cf.dimension(function(i) { return d.data1[i].id; });
And I construct my groups like:
var group = dim.group().reduceSum(function(i) { return d.data1[i].total;});
This all works fine, but when I want to create custom reduce functions, the extra parameter i is giving me trouble.
var reduceAddPerc = function(p,v) {
p.sumOfSub += d.data1[i].var1;
p.sumOfTotal += d.data1[i].total;
p.finalVal = p.sumOfSub / p.sumOfTotal;
return p;
};
var reduceRemovePerc = function(p,v) {
p.sumOfSub -= d.data1[i].var1;
p.sumOfTotal -= d.data1[i].total;
p.finalVal = p.sumOfSub / p.sumOfTotal;
return p;
};
var reduceInitialPerc = function() {
return {sumOfSub:0, sumOfTotal:0, finalVal:0 };
};
And then defining the group with:
var group = dim.group().reduce(reduceAddPerc,reduceRemovePerc,reduceInitialPerc);
This doesn't work obviously, since the parameter i is now not known within the function. But I've tried adding the parameter (p,v,i), or nesting the functions by creating an additional function with parameter i around the (p,v) function, and also creating an additionao function(i) within the (p,v) function, but I cannot get this to work.
Does anyone have any help to offer?
In the custom reduce functions, the v parameter is the record currently being "reduced". In this case, it should be your counter, so just use it where you would normally use i. Is that not working?
This question already has answers here:
How to identify unused CSS definitions from multiple CSS files in a project
(3 answers)
Closed 9 years ago.
I was thinking of writing a script which would tell me:
How often each CSS class defined in my .css file is used in my code
Redundant CSS classes - classes never used
CSS classes hat are referenced that don't exist.
But I just want to make sure something like this doesn't exist already? Does it?
Thanks
Just for fun, I wrote one.
try it
First we need to find our style sheet. In an actual script, this would be written better, but this works on jsFiddle.
var styles = document.head.getElementsByTagName('style');
var css = styles[styles.length - 1].innerHTML;
Then remove comments, and the bodies of each selector (i.e. the stuff between the brackets). This is done because there could be a .com in a background-image property, or any number of other problems. We assume there isn't a } in a literal string, so that would cause problems.
var clean = css.replace(/\/\*.*?\*\//g, '').replace(/\{[^}]*\}/g, ',');
We can find classes with regular expressions, and then count how many of them occur.
var re_class = /\.(\w+)/g;
var cssClasses = {}, match, c;
while (match = re_class.exec(clean)) {
c = match[1];
cssClasses[c] = cssClasses[c] + 1 || 1;
}
I used jsprint for displaying our findings. This shows how many times each class is mentioned in our CSS.
jsprint("css classes used", cssClasses);
Thanks to Google and this answer we can find all elements in the body, and loop through them. By default, we assume no classes were used in our HTML, and all classes used were defined.
var elements = document.body.getElementsByTagName("*");
var neverUsed = Object.keys(cssClasses);
var neverDefined = [];
var htmlClasses = {};
We get each elements class, and split it on the spaces.
for (var i=0; i<elements.length; i++) {
var e = elements[i];
var classes = (e.className || "").split(" ");
This is a three dimensional loop, but it works nicely.
for (var j=0; j<classes.length; j++) {
for (var k=0; k<neverUsed.length; k++) {
We thought classes[j] was never used, but we found a use of it. Remove it from the array.
if (neverUsed[k] === classes[j]) {
neverUsed.splice(k, 1);
}
}
It looks like we found a class that doesn't appear in our CSS. We just need to make sure it's not an empty string, and then push it onto our array.
if (classes[j].length && cssClasses[classes[j]] == null) {
neverDefined.push(classes[j]);
}
Also count the number of times each class is used in HTML.
if (classes[j].length) {
htmlClasses[classes[j]] = htmlClasses[classes[j]] + 1 || 1;
}
}
}
Then display our results.
jsprint("html class usage", htmlClasses);
jsprint("never used in HTML", neverUsed);
jsprint("never defined in CSS", neverDefined);
I have a file to put in a multidimensional array. I have to put to [0] a date (long) and one of the dimensions must be incremented depending on the value of the second token.
Here's the code :
BufferedReader bufStatsFile = new BufferedReader(new FileReader(statsFile));
String line = null;
List<Long[]> stats = new ArrayList<Long[]>();
stats.add(new Long[11]);
int i = 0; // will be in a loop later
while((line = bufStatsFile.readLine()) != null) {
StringTokenizer st = new StringTokenizer(line,";");
while(st.hasMoreTokens()) {
stats.get(i)[0] = Long.parseLong(st.nextToken());
stats.get(i)[Integer.parseInt(st.nextToken())]++; // Here is the problematic line.
}
}
bufStatsFile.close();
But the incrementation doesn't work. Maybe it is because of my array which is probably not correct, but I didn't found another proper way to do that.
Ok. I have found and it was, of course, stupid.
The problem was in my array declaration. I did it like that :
List<Long[]> stats = new ArrayList<Long[]>();
stats.add(new Long[11]);
And then, I tried to increment an Object and not a long number.
So now, I just do it like this :
List<long[]> stats = new ArrayList<>();
stats.add(new long[11]);
And it's perfectly working.
Check that the elements in your file are numbers from 0 to 10. Why are you having a List if you are only manipulating the row 0?
Which exception are your code throwing away?
I've got a JS array which is writing to a text file on the server using StreamWriter. This is the line that does it:
sw.WriteLine(Request.Form["seatsArray"]);
At the moment one line is being written out with the entire contents of the array on it. I want a new line to be written after every 5 commas. Example array:
BN,ST,A1,303,601,BN,ST,A2,303,621,BN,WC,A3,303,641,
Should output:
BN,ST,A1,303,601,
BN,ST,A2,303,621,
BN,WC,A3,303,641,
I know I could use a string replace but I only know how to make this output a new line after every comma, and not after a specified amount of commas.
How can I get this to happen?
Thanks!
Well, here's the simplest answer I can think of:
string[] bits = Request.Form["seatsArray"].Split(',');
for (int i = 0; i < bits.Length; i++)
{
sw.Write(bits[i]);
sw.Write(",");
if (i % 5 == 4)
{
sw.WriteLine();
}
}
It's not terribly elegant, but it'll get the job done, I believe.
You may want this afterwards to finish off the current line, if necessary:
if (bits[i].Length % 5 != 0)
{
sw.WriteLine();
}
I'm sure there are cleverer ways... but this is simple.
One question: are the values always three characters long? Because if so, you're basically just breaking the string up every 20 characters...
Something like:
var input = "BN,ST,A1,303,601,BN,ST,A2,303,621,BN,WC,A3,303,641,";
var splitted = input.Split(',');
var cols = 5;
var rows = splitted.Length / cols;
var arr = new string[rows, cols];
for (int row = 0; row < rows; row++)
for (int col = 0; col < cols; col++)
arr[row, col] = splitted[row * cols + col];
I will try find a more elegant solution. Properly with some functional-style over it.
Update: Just find out it is not actually what you needs. With this you get a 2D array with 3 rows and 5 columns.
This however will give you 3 lines. They do not have a ending ','. Do you want that? Do you always want to print it out? Or do you want to have access to the different lines?:
var splitted = input.Split(new [] { ','}, StringSplitOptions.RemoveEmptyEntries);
var lines = from item in splitted.Select((part, i) => new { part, i })
group item by item.i / 5 into g
select string.Join(",", g.Select(a => a.part));
Or by this rather large code. But I have often needed a "Chunk" method so it may be reusable. I do not know whether there is a build-in "Chunk" method - couldn't find it.
public static class LinqExtensions
{
public static IEnumerable<IList<T>> Chunks<T>(this IEnumerable<T> xs, int size)
{
int i = 0;
var curr = new List<T>();
foreach (var x in xs)
{
curr.Add(x);
if (++i % size == 0)
{
yield return curr;
curr = new List<T>();
}
}
}
}
Usage:
var lines = input.Split(',').Chunks(5).Select(list => string.Join(",", list));
I would like to use the IEnumerable function Intersect() to combine a few list and get the similar integers from each list. The problem I'm faced with is that I don't know how many list I will need to compare.
Here is an example:
A{1,2,3,4}
B{1,2,3}
C{1,2}
results = A.Intersect(B).Intersect(C)
This works great, but the next time around I may have a D{1,2} next time I come across the function.
I'd like to use the Intersect method, but I'm open to new ideas as well.
If you are receivng the collections in a list, you could do this:
List<List<int>> lists = new List<List<int>>();
var result = lists[0].AsEnumerable();
for (int i = 0; i < lists.Count - 1; i++)
{
result = result.Intersect(lists[i + 1]);
}