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def isincreasing(ls): if not ls: print "list empty or short" return return (false if ls[0] > ls[1] else isincreasing(ls[1:])) i have made check if list sorted. how can make function stop when there no more check? im getting error "list index out of range". just add: checking if 2 elements in list checking if 1 element or no element in list code: def isincreasing(ls): if len(ls) < 2: print "list empty or short" return if len(ls) == 2: return ls[0] < ls[1] return (false if ls[0] > ls[1] else isincreasing(ls[1:])) print "{}", isincreasing({}) print "[]", isincreasing([]) print [1,2,3], isincreasing([1,2,3]) print [4,6,8], isincreasing([4,6,8]) print [2,1,2,3], isincreasing([2,1,2,3]) print [1,2,3,2], isincreasing([1,2,3,2]) print [3,2,1], isincreasing([3,2,1]) output: {} list empty or short none [] list empty or short none [1, 2, 3] true [4, 6, 8] ...

how can change div text selectbox option selected text... i have selectbox more 100 values scenario: select option selectbox, same option value(text) has replaced relevant div text has ccy class <div class="ccy">blablabla</div> class... eg: have selectbox eur, usd, jpy, inr etc... if select eur selectbox, relevant divs has class ccy <div class='ccy'>currency 1</div><div class='ccy'>currency 2</div> should changed <div class='ccy'>eur</div><div class='ccy'>eur</div> , on... fiddle html <select id="currencty-selectbox"> <option value="1">eur</option> <option value="2">usd</option> <option value="3">jpy</option> <option value="4">cad</option> <option value="5">mxn</option> <option value="6">czk<...

i developing ios app swift should fetch data mysql database according user's location. don't know php , couldn't find resource explains how receive data app. i have php code: <?php // create connection $con=mysqli_connect("localhost","*******","*******","*******"); // check connection if (mysqli_connect_errno()) { echo "failed connect mysql: " . mysqli_connect_error(); } // sql statement selects table 'locations' $sql = "select * *******"; // check if there results if ($result = mysqli_query($con, $sql)) { // if so, create results array , temporary 1 // hold data $resultarray = array(); $temparray = array(); // loop through each row in result set while($row = $result->fetch_object()) { // add each row our results array $temparray = $row; array_push($resultarray, $temparray); } // finally, encode array json , output results ...

i have working login function authenticates , saves. however, express never remembers old session, creates new 1 every network request. evidently, passport exceedingly sensitive order express middleware initialized. (example: https://www.airpair.com/express/posts/expressjs-and-passportjs-sessions-deep-dive ). checked config against number of examples , rearranged if help, hasn't moved bug. either isn't issue or haven't found config holy grail yet. here's current config: express config app.engine('html', require('ejs').renderfile); app.set('view engine', 'html'); app.use(express.static(path.join(config.root, '/views'))); app.set('views', config.root + '/views'); var sessionopts = { saveuninitialized: true, resave: false, store: new redisstore({ host: 'localhost', port: 6379 }), secret: 'keyboard', cookie: { httponly: true, maxage: 1000...

i have below method rearranging position of radio , checkbox images app. def change_position if !self.position.blank? existing_model=part.where("ancestry = #{self.ancestry} , position = #{self.position}") if !existing_model[0].blank? if !self.changes['position'].blank? existing_model[0].update_columns(position: self.changes['position'][0]) end end end end but when trying change position of parent option, getting below error in rails admin panel. sqlite3::sqlexception: near "and": syntax error: select "parts".* "parts" (ancestry = , position = 2) order created_at asc why not able save position parent options position here? any here?

got little problem here that's taking me long solve. might idiot because feel simple problem cant wrap head around it. here's code: get_online = function (err, result) { if (err) { return next(err); } streamers_size = result.length; result.map( function (entry) { curl.get .to('https://api.twitch.tv/kraken/streams/' + entry.uname) .then(update_streamers); } ); }, update_streamers = function (err, result) { var clean; if (err) { return next(err); } if (result.stream) { db.collection('streamers').update({ _id: result.stream.channel._id }, { $set: { stream_preview: result.stream.preview.large, viewers: result.stream.viewers } }, send_response); } ...

i'm trying print out sections of text file. right text file consists of jack <id 123.456> doug <id 231.345> this have far in terms of code: bufferedreader reader = new bufferedreader(new filereader("file.txt")); string readbuff = reader.readline(); string tempstring = ""; while (readbuff != null) { if (tempstring.equals("<id ") && !readbuff.equals(">")) { tempstring = readbuff; system.out.println(tempstring); } readbuff = reader.readline(); } reader.close(); i hoping print out id section (i.e. "123.456" , "231.345") of each line right doesn't print anything. appreciated. try code: fileinputstream fis = new fileinputstream(new file("file.txt")); bufferedreader br = new bufferedreader(new inputstreamreader(fis)); string line = null; while ((line = br.readline()) != null) { str...