两个javascript文件冲突

Question

我正在使用html5 LeanBack Player，当仅在页面上使用它的javascritpts时，它可以很好地工作。 但是，如果我将这些JavaScript文件添加到Rails 3项目中，则LeanBack Player的javascript文件会出现错误：

Uncaught TypeError: Object function each(iterator, context) {
  var index = 0;
  try {
    this._each(function(value) {
      iterator.call(context, value, index++);
    });
  } catch (e) {
    if (e != $break) throw e;
  }
  return this;
} has no method ‘split’

在函数LBPlayer.prototype.resolveTextPlainSubs中。

我猜想那是因为与Rails中的原生Prototype冲突，但是我不知道如何解决它。 谢谢

Answer 1

确实，这与Array.prototype扩展的Prototypes冲突：

// leanbackPlayer.js @941
srt = srt.split('\n\n');
var i = 0; var isSub = false;
this.vars.subs[lang] = {};
this.vars.subs[lang].label = {};
this.vars.subs[lang].label = label;
this.vars.subs[lang].track = {};

// Error: using for in over an array is just stupid
//        not even using hasOwnProperty is outright pitiful
for(var s in srt) { 

    // this will also yield `each` but that's a function which has no .split() method
    var st = srt[s].split('\n');
    var time; var j;
    if(st.length >= 2) {
        var t = "";

为了修复它，您应该使用简单的for循环替换for(var s in srt) ：

for(var e = 0, el = srt.length; e < el; e++) {
    var st = srt[e].split('\n');
    var time; var j;
    if(st.length >= 2) {
        var t = "";
        ...
}