[問題] node.js太忙引起的前端問題
Hi 各位大大好 小魯最近用nw.js在寫讀取檔案的程式
我想呈現讀取的進度條，卻發現讀取檔案的時候程式太忙
完全不會理UI要做變化，可是javascript不是非同步執行的嗎?
完全不懂為什麼會出現這狀況
以下是我的程式範例，UI是使用bootstrap
for(var i=1; i<=days;i++){
d = y+'/'+m+'/'+add_zero(i);
file_path = f_path + '/' + y+'-'+ m +'-' + add_zero(i) + '_'.txt';
(function(file_path, d){
check_file(file_path , function(back){
if( back.status == 1){
load_file(file_path, function(data){
count++;
process_bar(0, days, count);
if(count > days ){
console.log(count);
}
});
}
});
})(file_path,d);
}
function process_bar(min, max, now){
$('#bar').attr('aria-valuemin', min);
$('#bar').attr('aria-valuemax', max);
$('#bar').attr('aria-valuenow', now);
$('#bar').attr('style', 'width:'+ Math.round( now/(min+max)*100 ) +'%');
}
--
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