javascript - Decrease x value on svg inside loop -


this code should move(slowly) svg box x="4" x="400". used simple loop js, , set jquery.

the box should start moving down site loaded, seems stuck in 1 place.

     $(function() {      var i;      var down = setinterval(function() {          move_down()      }, 250);        function move_down() {          (i = 4, < 400, i++) {              $("#block_green").attr({                  y:              });          }      }  });
    body {      margin: 0;      overflow: hidden;  }    svg {      background-color: black;      width: 100vw;      height: 100vh;  }    #block_green {      fill: black;      stroke: #00ff00;      stroke-width: .5px;  }
 <!doctype html>  <html>    <head>      <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  </head>    <body>      <svg>          <rect x="4" y="4" width="80" height="60" id="block_green" />      </svg>  </body>    </html>

you need change how incremented (don't need loop because set interval doing looping here.) additionally, had commas in loop statement, caused none of code run (js uses semicolons).

$(function() {    var = 4;    var down = setinterval(move_down, 250);      function move_down() {      $("#block_green").attr({        y:      });      i++    }  });
body {    margin: 0;    overflow: hidden;  }  svg {    background-color: black;    width: 100vw;    height: 100vh;  }  #block_green {    fill: black;    stroke: #00ff00;    stroke-width: .5px;  }
<head>    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  </head>    <body>    <svg>      <rect x="4" y="4" width="80" height="60" id="block_green" />    </svg>  </body>    </html>


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i...
Read more