Max-Length for multiple text areas using php and Javascript -

-

i trying display number of characters left in multiple text areas. although have different id's text areas, max length prompted 2nd text area , not first. code shown below

<textarea id="txtbox"></textarea>      <input type="text" id="counterbox"/>         <script>             var txtboxref = document.queryselector("#txtbox");             var counterref = document.queryselector("#counterbox");             txtboxref.addeventlistener("keydown",function(){             var remlength = 0;             remlength = 160 - parseint(txtboxref.value.length);             if(remlength < 0)             {                 txtboxref.value = txtboxref.value.substring(0, 160);                 return false;             }             counterref.value = remlength + " characters remaining...";             },true);         </script>  <textarea id="txtbox1"></textarea>      <input type="text" id="counterbox1"/>             <script>                 var txtboxref = document.queryselector("#txtbox1");                 var counterref = document.queryselector("#counterbox1");                 txtboxref.addeventlistener("keydown",function(){                 var remlength = 0;                 remlength = 160 - parseint(txtboxref.value.length);                 if(remlength < 0)                 {                 txtboxref.value = txtboxref.value.substring(0, 160);                 return false;                 }                 counterref.value = remlength + " characters remaining...";                 },true);             </script>

the result below (what have):

enter image description here

what want :

enter image description here

looks variables txtboxref , counterref in same scope area, declared twice.

<textarea id="txtbox"></textarea>       <input type="text" id="counterbox"/>          <script>              var txtboxref = document.queryselector("#txtbox");              var counterref = document.queryselector("#counterbox");              txtboxref.addeventlistener("keydown",function(){              var remlength = 0;              remlength = 160 - parseint(txtboxref.value.length);              if(remlength < 0)              {                  txtboxref.value = txtboxref.value.substring(0, 160);                  return false;              }              counterref.value = remlength + " characters remaining...";              },true);          </script>    <textarea id="txtbox1"></textarea>       <input type="text" id="counterbox1"/>              <script>                  var txtboxref1 = document.queryselector("#txtbox1");                  var counterref1 = document.queryselector("#counterbox1");                  txtboxref1.addeventlistener("keydown",function(){                  var remlength = 0;                  remlength = 160 - parseint(txtboxref1.value.length);                  if(remlength < 0)                  {                  txtboxref1.value = txtboxref1.value.substring(0, 160);                  return false;                  }                  counterref1.value = remlength + " characters remaining...";                  },true);              </script>

check fiddle


Comments

Post a Comment

Popular posts from this blog

python - Healpy: From Data to Healpix map -

-
Image
i have data grid rows represent theta (0, pi) , columns represent phi (0, 2*pi) , f(theta,phi) density of dark matter @ location. wanted calculate power spectrum , have decided use healpy. what can not understand how format data healpy use. if provide code (in python obvious reasons) or point me tutorial, great! have tried hand @ doing following code: #grid dimensions nrows*ncols (subject change) theta = np.linspace(0, np.pi, num=grid.shape[0])[:, none] phi = np.linspace(0, 2*np.pi, num=grid.shape[1]) nside = 512 print "pixel area: %.2f square degrees" % hp.nside2pixarea(nside, degrees=true) pix = hp.ang2pix(nside, theta, phi) healpix_map = np.zeros(hp.nside2npix(nside), dtype=np.double) healpix_map[pix] = grid but, when try execute code power spectrum. specifically, : cl = hp.anafast(healpix_map[pix], lmax=1024) i error: typeerror: bad number of pixels if point me tutorial or edit code great. more specifications: data in 2d np array , can change numrows/...
Read more

c - Bitwise operation with (signed) enum value -

-
i using enumerator values flags: typedef enum { = 0x00, b = 0x01u, // u has no influence, expected c = 0x02u, // u has no influence, expected ... } enum_name; volatile unsigned char* reg = someaddress; *reg |= b; according misra-c:2004 bitwise operations shall not done signed type. unfortunately, compiler iar use signed int (or short or char) underlying type of enums, , option can find relates size, not signedness ("--enum-is-int"). according iar c/c++ development guide arm , pages 169 , 211, can define type of enum s if enable iar language extensions ( -e command-line option, or project > options > c/c++ compiler > language > allow iar extensions in ide). in particular, should define "sentinel" value, make sure compiler chooses correct type. prefers signed types, , uses smallest possible integer type, sentinel should largest positive integer corresponding unsigned integer type can describe. example, typedef enum ...
Read more

xslt - Unnest parent nodes by child node -

-
in xml there items 0-n attributes , item should copied each attribute new item 1 attribute. given xml this: <?xml version="1.0" encoding="utf-8" ?> <items> <item> <name>a</name> <attributes> <attribute> <key>attribute1</key> <value>1</value> </attribute> </attributes> </item> <item> <name>b</name> </item> <item> <name>c</name> <attributes> <attribute> <key>attribute1</key> <value>5</value> </attribute> <attribute> <key>attribute2</key> <value>2</value> </attribute> <attribute> <key>attri...
Read more