想不通爲什麼我的JavaScript不工作

-1

問題是我有一個JavaScript，看着幾個文本字段，並獲取每個的值。將它們加在一起，並在我的廢文本字段中給我一個總數。我想要做的是說，如果設置是A B C或D做總和，如果安裝程序的值是空白做其他。它似乎不想工作任何幫助將不勝感激。想不通爲什麼我的JavaScript不工作

$(document).ready(function(){ 

    $('.scrap').click(function() { 
    var weld_scrap = $('.weld').val(); 
    var dim_scrap = $('.dim').val(); 
    var visual_scrap = $('.visual').val(); 
    var adjust_scrap = $('.adjust').val(); 
    var setup = $('.setup').val(); 
    console.log(setup) 
    var sum = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap) + parseInt(setup); 
    var other = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap); 
    var A = '10'; 
    var B = '10'; 
    var C = '10'; 
    var D = '10'; 
    if (setup == 'A') { 
     setup = A; 
     $('.scrap').val(sum); 

    }else if (setup == 'B') { 
     setup = B; 
     $('.scrap').val(sum); 

    }else if (setup == 'C') { 
     setup = C; 
     $('.scrap').val(sum); 

    }else if (setup == 'D') { 
     setup = D; 
      $('.scrap').val(sum); 
    }else if (setup == '') { 
     $('.scrap').val(other); 

    } 
    }); 
});

我也試過這樣的，如果設置爲空

$(document).ready(function(){ 

    $('.scrap').click(function() { 
    var weld_scrap = $('.weld').val(); 
    var dim_scrap = $('.dim').val(); 
    var visual_scrap = $('.visual').val(); 
    var adjust_scrap = $('.adjust').val(); 
    var setup = $('.setup').val(); 
    console.log(setup) 
    var sum = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap) + parseInt(setup); 
    var other = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap); 
    var A = '10'; 
    var B = '10'; 
    var C = '10'; 
    var D = '10'; 
    if (setup == 'A') { 
     setup = A; 
     $('.scrap').val(sum); 

    }else if (setup == 'B') { 
     setup = B; 
     $('.scrap').val(sum); 

    }else if (setup == 'C') { 
     setup = C; 
     $('.scrap').val(sum); 

    }else if (setup == 'D') { 
     setup = D; 
      $('.scrap').val(sum); 
    }else if (setup === null) { 
     $('.scrap').val(other); 

    } 
    }); 
});

，這也

$(document).ready(function(){ 

    $('.scrap').click(function() { 
    var weld_scrap = $('.weld').val(); 
    var dim_scrap = $('.dim').val(); 
    var visual_scrap = $('.visual').val(); 
    var adjust_scrap = $('.adjust').val(); 
    var setup = $('.setup').val(); 
    console.log(setup) 
    var sum = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap) + parseInt(setup); 
    var other = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap); 
    var A = '10'; 
    var B = '10'; 
    var C = '10'; 
    var D = '10'; 
    if (setup == 'A') { 
     setup = A; 
     $('.scrap').val(sum); 

    }else if (setup == 'B') { 
     setup = B; 
     $('.scrap').val(sum); 

    }else if (setup == 'C') { 
     setup = C; 
     $('.scrap').val(sum); 

    }else if (setup == 'D') { 
     setup = D; 
      $('.scrap').val(sum); 
    }else if (setup == '0') { 
     $('.scrap').val(other); 

    } 
    }); 
});

這也太...

$(document).ready(function(){ 

    $('.scrap').click(function() { 
    var weld_scrap = $('.weld').val(); 
    var dim_scrap = $('.dim').val(); 
    var visual_scrap = $('.visual').val(); 
    var adjust_scrap = $('.adjust').val(); 
    var setup = $('.setup').val(); 
    console.log(setup) 
    var sum = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap) + parseInt(setup); 
    var other = parseInt(weld_scrap) + parseInt(dim_scrap) + parseInt(visual_scrap) + parseInt(adjust_scrap); 
    var A = '10'; 
    var B = '10'; 
    var C = '10'; 
    var D = '10'; 
    if (setup == 'A') { 
     setup = A; 
     $('.scrap').val(sum); 

    }else if (setup == 'B') { 
     setup = B; 
     $('.scrap').val(sum); 

    }else if (setup == 'C') { 
     setup = C; 
     $('.scrap').val(sum); 

    }else if (setup == 'D') { 
     setup = D; 
      $('.scrap').val(sum); 
    }else if (setup === undefined) { 
     $('.scrap').val(other); 

    } 
    }); 
});

來源

2015-04-28 Snowman1234

可以添加一個演示？ – Mritunjay

您可以使用https://jsfiddle.net/進行演示 – Reeno

「似乎不想工作」是什麼意思？ – entropic

您可以檢查是否爲空值從一開始，否則檢查，如果它等於「A」或「B」 ......

if(setup.match(/\S/)){ 
    if (setup == 'A') { 
    setup = A; 
     $('.scrap').val(sum); 

    }else if (setup == 'B') { 
    setup = B; 
     $('.scrap').val(sum); 

    }else if (setup == 'C') { 
    setup = C; 
     $('.scrap').val(sum); 

    }else if (setup == 'D') { 
    setup = D; 
     $('.scrap').val(sum); 
    } 
}else{ 
    // will come here when there is an empty value 
    $('.scrap').val(other); 
}

來源

2015-04-28 14:11:36

感謝您的回答，但不幸的是，如果安裝程序中有某些內容，它仍然不能正常工作。如果它是空白的，它也不會得到相同的總和值。 @ mohamed-ibrahim – Snowman1234

@ Snowman1234我修改了代碼有一個額外的！在我的代碼中，讓我解釋一下這裏會發生什麼，\ S匹配任何非空白字符，所以如果它的空值，那麼它將不匹配，因此會去其他地方。 –

工作你真棒謝謝你的幫助！ – Snowman1234

-1

檢查，如果你有導入正確的jquery頭文件。雖然您可以使用.on（）方法並檢查它.. 使用console.log（）進行開發時，從start開始一步一步檢查是很好的。

$(".scrap").on("click", function() { 
    // your stuff here 
    ); 
});

來源

2015-04-28 13:53:19 Waqas

想不通爲什麼我的JavaScript不工作

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