在同一个类中添加值并返回总和

Hello people here is my code below...

你好,这里的人是我的代码......

var total = 0;
var find_total;
 function total_val(find_total){

$(find_total).each(function() {
    total += parseInt($(this).text());
    return total;
});

  }

Iam calling this function...

我叫这个功能......

$('#total_price').val(total_val('.price'));

#total_price and .price keeps changing for different div ids and class ... return total; does not work, any ways to fix this??

#total_price和.price不断更改不同的div id和class ... return total;不起作用,任何解决方法?

2 个解决方案

#1

You are returning the total value inside the .each() function, it would not return anything while we expecting a value from the function total_val(),

你在.each()函数中返回总值,当我们期望函数total_val()的值时,它不会返回任何内容,

Try,

function total_val(find_total){ 
   var total = 0; //remove the global variable total and use this.
   $(find_total).each(function() {
    total += parseInt($(this).text());
   });
   return total;
}

or you could use .reduce() to make your code simple.

或者您可以使用.reduce()来简化代码。

function total_val(find_total){ 
   return $(find_total).map(function() {
   return parseInt($(this).text());
   }).get().reduce(function(a,b){
   return a+b;
   });
}

Even simpler,

function total_val(find_total){ 
   return $(find_total).get().reduce(function(a,b){
      return a+ parseInt($(b).text(),10);
   },0);
}

2 个解决方案

#1

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