如何获得模板的所有实例? [英] How do you get all instances of a Template?

问题描述

我知道我可以通过执行Blaze.getView(node)来获得一个模板实例.但是如何找到Template.foo的所有实例?

I know I can get a single template instance by doing Blaze.getView(node). But how can I find all instances of Template.foo?

推荐答案

如果我们借用

If we borrow walkTheDOM from Crockford, we can drop this into the browser console and find all template instances on any page

function findAllTemplateInstances(templateName){
  function walkTheDOM(node, func) {
      func(node);
      node = node.firstChild;
      while (node) {
          walkTheDOM(node, func);
          node = node.nextSibling;
      }
  }
  var instances = [];
  walkTheDOM(document.body, function(node) {
    try{
      if (Blaze.getView(node).name === templateName){
        instances.push(Blaze.getView(node).templateInstance());
      }
    } catch(err){
    }
  });
  return _.uniq(instances)
}

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