Discussion on jquery setting and obtaining checkbox selection _jquery

1. Set checkbox check:

Select multiple marquee
checkbox=$ ("#agentinfo input[name= ' veri[]");

Loop the value
Checkbox.each (function () {for
              
  (var j=0;j<data.veri.length;j++) {
    
    ////To determine if the current value is in an array
    . (this). val () = = Data.veri[j]) {
      $ (this). attr (' checked ', ' checked ');//Check
    }}
);

2. Modify CheckBox selection by clicking

3. Get the selected value in the checkbox

Get multiple marquee
checkbox=$ ("#agentinfo input[name= ' veri[]");
  
  Defines a string concatenation of the resulting values, in order to facilitate the transmission of
  var veri_str = ';
          
  Checkbox.each (function () {
    
    //Decide whether to be selected, here is the reason I want to write this blog, starting with the $ (this). attr (' checked ') ==true judge, but dead
    or Alive/ is to get the value of the previous jquery assignment, the page will get rid of, depressed not, the final fairy help me to fix.
    //To use $ (this). Is (': checked '), do not understand why!
    
    if ($ (this). are (': Checked '))
      
        veri_str+=$ (This). Val () + ', ';//assemble String
  });

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