How can you display a specific item in an array with Pug? For example:
each answer in answers
li!= answer.Response
Will display each item in the array. But, say I wanted just the the third item or, better yet, pass a variable for a specific index to display. What is the syntax for this?
- const indexIwant = 2;
if answers && answers.length>indexIwant
li=answers[indexIwant]
You need to ensure answers is not null and has at least the number of items to include the indexed item you want.
Another thing: don't use != unless you know exactly what data you are handling.
The simplest way to access a specific index of an array in pug:
-const meals = ["breakfast", "lunch", "dinner"]
-const favoriteDishes = ["coffee & doughnut salad","cheese danish soup","red wine","banana split sandwich"]
-const sides = ["ranch dressing","chutney","ketchup","chocolate sauce"]
p I reckon I will fix myself a hefty helping of #{favoriteDishes[2]} for #{meals[0]} with a side of #{sides[2]}.
Considering that indentation and whitespace is everything in jade / pug, this works :))
Related
I'm designing a Mastermind game, which basically compares 2 lists and marks the similarities. When a colour is found at the right place, a flag making the correct position is added and the item found on the reference list is marked off. The reference list is feeding off an array from another function. The problem is at the mark off, as any changes done to the reference list is changing also the original array, which i don't want it to happen
tempCode = mCode #mCode is the array combination randomly generated from another function
for i in range (len(uCode)): #user input array
for j in range (len(tempCode)): #temp array
if uCode[i] == tempCode[j]: # compare individual chars
if i == j: #compare position
flagMark = "*"
tempCode.insert(j+1, "x") #problem starts here
tempCode.remove(tempCode[j])
fCode.append(flagMark)
When the insert is reached both the tempCode and mCode change which it is not intended.
The code is written in a way should the user enter a combination of the same colours, thus checking the chras(the colours are just letters) and the position, and then mark them of with "x"
As it stands, when it gets to
tempCode.insert(j+1, "x")
the arrays will change to
mCode = ["B","R","x","G","Y"]
tempCode = ["B","R","x","G","Y"]
when I would just want
mCode = ["B","R","G","Y"]
tempCode = ["B","R","x","G","Y"]
See also this answer, which is a different presentation of the same problem.
Essentially, when you do tempCode = mCode, you're not making a copy of mCode, you're actually making another reference to it. Anything you do to tempCode thereafter affects the original as well, so at any given time the condition tempCode == mCode will be true (as they're the same object).
You probably want to make a copy of mCode, which could be done in either of the following ways:
tempCode = mCode.copy()
tempCode = mCode[:]
which produces a different list with the same elements, rather than the same list
I'm fairly new to gradle. How do I filter text in the following manner?
Pretend that the output/result I want to filter will be the two URLs below.
"http://localhost/artifactory/appNameIwant/moreStuffHereThatsDynamic"
> I want this URL
"http://localhost/artifactory/differentAppName"
> I don't want this URL
I want to put up a "match" variable that would be something like
variable = http://localhost/artifactory/appnameIwant
So essentially, the string will not be a perfect match. I want it to filter and provide back any URLs that start with the variable listed above. It cannot be a perfect match as the characters after the /appnameIwant/ will be changing.
I want to use a for loop to cycle through an array, with an if then statement to return any matches. For instance.
for (i=0; i < results.length; i++){
if (results[i] strings matches (http://localhost/artifactory/appnameIwant) {
return results[i] }
I am just filtering the URL strings themselves, not anything complicated inside the webpages.
Let me know if further explanation would be helpful.
Thanks so much for your time and help!
I figured it out - I just used
if (string.startsWith"texthere")) {println string}
A lot easier than I thought!
what is the proper way to implement an autocomplete search with undescore?
i have a simple array (cities) and a text input field ($.autocomplete). when the user enters the first letters in the auto-complete textfield, it should output an array with all the cities starting with the entered letters (term).
cities:
["Graz","Hamburg","Innsbruck","Linz","München","Other","Salzburg","Wien"]
eventlistener:
$.autocomplete.addEventListener("change", function(e){
var cities = cities_array;
var term = $.autocomplete.value;
var results = _.filter(cities, function (city){
return
});
console.log(results + "this is results");
});
I’ve tried it with _.contains, but it only returns the city when its a complete match (e.g Graz is only output when „Graz“ is entered but not when „Gr“ is entered).
the _.filter/._select collection at http://underscorejs.org/docs/underscore.html are not very clear for me and the closest i found here is filtering JSON using underscore.
but i don’t understand the indexOf part.
thx for any suggestions!
By using #filter and #indexOf, you can get quite close to a pretty decent autocomplete.
What #indexOf does is that it checks the string if it contains the inputVal.
If it does not contain it it'll return -1 therefore our predicate below will work without fail.
Another small trick here is that you (read I) wanted it to be possible to search for s and get a hit for Innsbruck and Salzburg alike therefore I threw in #toLowerCase so that you always search in lower case.
return _.filter(cities, function(city) {
return city.toLowerCase().indexOf(inputVal.toLowerCase()) >= 0;
});
I have a variable that is created by a loop. The variable is large enough and in a complicated enough form that I want to save the variable each time it comes out of the loop with a different name.
PM25 is my variable. But I want to save it as PM25_year in which the year changes based on `str = fname(13:end)'
PM25 = permute(reshape(E',[c,r/nlay,nlay]),[2,1,3]); % Reshape and permute to achieve the right shape. Each face of the 3D should be one day
str = fname(13:end); % The year
% Third dimension is organized so that the data for each site is on a face
save('PM25_str', 'PM25_Daily_US.mat', '-append')
The str would be a year, like 2008. So the variable saved would be PM25_2008, then PM25_2009, etc. as it is created.
Defining new variables based on data isn't considered best practice, but you can store your data more efficiently using a cell array. You can store even a large, complicated variable like your PM25 variable within a single cell. Here's how you could go about doing it:
Place your PM25 data for each year into the cell array C using your loop:
for i = 1:numberOfYears
C{i} = PM25;
end
Resulting in something like this:
C = { PM25_2005, PM25_2006, PM25_2007 };
Now let's say you want to obtain your variable for the year 2006. This is easy (assuming you aren't skipping years). The first year of your data will correspond to position 1, the second year to position 2, etc. So to find the index of the year you want:
minYear = 2005;
yearDesired = 2006;
index = yearDesired - minYear + 1;
PM25_2006 = C{index};
You can do this using eval, but note that it's often not considered good practice. eval may be a security risk, as it allows user input to be executed as code. A better way to do this may be to use a cell array or an array of objects.
That said, I think this will do what you want:
for year = 2008:2014
eval(sprintf('PM25_%d = permute(reshape(E',[c,r/nlay,nlay]),[2,1,3]);',year));
save('PM25_Daily_US.mat',sprintf('PM25_%d',year),'-append');
end
I do not recommend to set variables like this since there is no way to track these variables and completely prevents all kind of error checking that MATLAB does beforehand. This kind of code is handled completely in runtime.
Anyway in case you have a really good reason for doing this I recommend that you use the function assignin for this.
assignin('caller', ['myvar',num2str(1)], 63);
In Confluence v.5.3, I'm trying to write a User Macro that creates a table from my index page's children. Each child page has an Excerpt macro in it that I need to add to the index page's table. From my User Macro, the excerpts are being pulled out by calling Excerpt-Include within my macro. They are printing quite fine on the table.
My problem is I can't seem to use the excerpts within an if-else comparison. For whatever reason, it's not comparing them, or I'm writing it incorrectly. This is what I am attempting to do:
#set($macroFinal = "{excerpt-include:" + $page.getTitle() + "|nopanel=true}")
#set($myexcerpt = $action.getHelper().renderConfluenceMacro($macroFinal).replaceAll('"', '"') + " ")
#if($myexcerpt == "High")
#set($colors = "#F0F0F0")
#else
#set($colors = "#FFFFFF")
#end
Any idea how to get the comparison to work?
Well, egg on my face. Turns out I just needed to add a "toString" to the end of the whole thing.
#set($myexcerpt = $action.getHelper().renderConfluenceMacro($macroFinal).replaceAll('"', '"').toString())
So, lesson learned, when in doubt, toString.