閱讀txt文件通過線使用JavaScript

Question

我使用能夠打印整個文件的內容行：

write(document.getElementById('iframe').contentDocument.body.firstChild.innerHTML); 

但我怎麼用線檢索和打印文件內容系？

Answer 1

可以使用分裂功能和分隔符「\ r \ n」或「\ n」來提取您加載內容都各條線，然後再執行任何你想與他們做的事：

var text = document.getElementById('iframe').contentDocument.body.firstChild.innerHTML; 
var lines = text.split("\n");   // this will extract all the lines 
for (i=0; i<lines.length; i++) {   // this will move over all the lines 
    var current_line = lines[i];   // this contains every line at its turn 
    // do here what ever you want to do with current_line 
}