ExtJS错误解决 Cannot read property 'on' of undefined
背景 用ExtJS新写了一个功能，运行时控制台打印错误Cannot read property 'on' of undefined，出错代码位置是Ext.define.bindStoreListener。app 分析 根据出错代码能够猜想出与store有关，可是依然没有头绪。对于新技术或未知问题，我只好祭出杀手锏“排除法”，先锁定问题所在。有计划的删除部分代码，再刷新页面尝试。而后，一遍遍重复直到
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相关文章
- 1. 解决Cannot read property 'range' of null 错误
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