javascript - Arithmetic with variables not working -


for reason, arithmetic in function updatescore(result) doesn't work (the function called later on in code). wins, ties , losses printed should, lives printed nan. know nan means. i've identified variables, reason or other, created strings. appears strange me, it's working 4 out of 5 variables. there's no consistency. i've tried number conversions using number(lives), doesn't work either. suggestions how can ensure variables created numbers, , aritmethic operations work?

var wins = 0,     ties = 0,     losses = 0,     lives = 5,     previouscpuchoice = 0;  $("#startknapp").click(function(){     var spiller = prompt("hva heter du?");     $("#userselect").html(usermenu);     $("#result").html("<h4>velg figur, " + spiller + "</h4>");     $("#status").html('<h4>liv: <span id="life">' +lives+ '</span> - seire: <span id="win">' + wins + '</span> - uavgjort: <span id="tie">' + ties + '</span> - tap: <span id="lose">' + losses + '</span>');     console.log(typeof "lives");     console.log(typeof "wins");     });  function updatescore(result) {     tie = document.getelementbyid("tie");     win = document.getelementbyid("win");     lose = document.getelementbyid("lose");     lives = document.getelementbyid("life");     console.log(typeof "wins");     var imgsrc = "images/" + userchoice + "-" + result + ".png";      if (result === "tie") {     ties = ties + 1;     tie.innerhtml = ties;     $('.result-img').attr('src', 'images/tie.png');     }      if (result === "vant") {     wins++;     $('.result-img').attr('src', imgsrc);     }      if (result === "tapte") {     losses++;     lives--;     lose.innerhtml = losses;     life.innerhtml = lives;     $('.result-img').attr('src', imgsrc);     } };

have tried following?

var tie = parseint(document.getelementbyid("tie").value);

your current code:

document.getelementbyid("tie")

retrieves dom element rather value of input. need use .value , parse integer inputs value string representation of number want rather integer value.


Comments

Post a Comment

Popular posts from this blog

javascript - jQuery: Add class depending on URL in the best way -

i have html progress meter: <div class="col-md-3" style="margin-left: -20px;"> <div class="progress-pos active" id="progess-1"> <div class="progress-pos-inner"> login </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-2"> <div class="progress-pos-inner"> scan items </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-3"> <div class="progress-pos-inner"> confirm address </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-4"> <div class="progress-pos-in...
Read more

Redirect to a HTTPS version using .htaccess -

i need modify .htaccess file redirect urls https version without "www". http://example.com --> https://example.com http://www.example.com --> https://example.com https://www.example.com --> https://example.com this how .htaccess file looks like: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(.*)$ redirect.php?id=$1&page=$2 [qsa,l] what modifications need make .htaccess in order forward https without "www"? it depends on doing current code. looks file called redirect trying display php page seo friendly url. think might confusing people. anyway, need , force https without www, need 1 more rule above. also second rule needs two capture groups in rewriterule test string because wanting 2 different values using $1 , $2 references. rewriteengine on #rediect www non www and/or http https --- combinations. rewritecond %{http_host} !^example\.com [nc,or] rewritecond %{https} !^...
Read more

Unlimited choices in BASH case statement -

consider simple bash snippet: case $option in 1) image=${options[0]%.tar} ;; 2) image=${options[1]%.tar} ;; 3) image=${options[2]%.tar} ;; 4) image=${options[3]%.tar} ;; *) echo "invalid option" exit 1 esac in real script numbers goes 30. makes pretty long. can somehow specify cases variable? something this: case $option in $i) image=${options[$(($i-1))]%.tar} any pointer appreciated. you can match against multiple patterns in single clause: case $option in 1|2|3: echo "$option one, 2 or three" ;; esac if still typing you, can use simple pattern matching: case $option in # following matches # - single-digit numbers 0-9 # - two-digit numbers starting either 1 or 2 # - number 30 [0-9]|[12][0-9]|30) image=${options[$(($option-1))]%.tar} ;; *) echo "invalid option" 1>&2 exit 1 esac
Read more