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Google translation replace character

press F5

// ==UserScript==
// @name         Google translation replace character
// @namespace    https://translate.google.cn/*
// @version      0.1
// @description  press F5
// @author       XMAN
// @include      https://*translate.google.*/*
// @match        http://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    //you can change what you want
    var txt = "";  
    txt = document.getElementById("source").value;
    for (var i=0;i<txt.length;i++)
    {
        if(txt.indexOf("\n"))txt = txt.replace("\n"," ");     
    }
    document.getElementById("source").value = txt; 
})();