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解决iview 'You may have an infinite update loop in watcher with expression "columns"'
解决方案
单表头是可以动态变化不需要增添什么东西
多表头目前iview尚不能动态变化，会报错You may have an infinite update loop in watcher with expression "columns"解决方法是github大神提供的：需要修改iview.js源码
将iview.js中
columns: { handler: function handler() { var colsWithId = this.makeColumnsId(this.columns); his.allColumns = (0, _util.getAllColumns)(colsWithId); this.cloneColumns = this.makeColumns(colsWithId); this.columnRows = this.makeColumnRows(false, colsWithId); this.leftFixedColumnRows = this.makeColumnRows('left', colsWithId); this.rightFixedColumnRows = this.makeColumnRows('right', colsWithId); this.rebuildData = this.makeDataWithSortAndFilter(); this.handleResize(); }, deep: true },修改为
columns: { handler: function handler() { //[Fix Bug]You may have an infinite update loop in watcher with expression "columns" var tempClonedColumns = (0, _assist.deepCopy)(this.columns); var colsWithId = this.makeColumnsId(tempClonedColumns); //[Fix Bug End] this.allColumns = (0, _util.getAllColumns)(colsWithId); this.cloneColumns = this.makeColumns(colsWithId); this.columnRows = this.makeColumnRows(false, colsWithId); this.leftFixedColumnRows = this.makeColumnRows('left', colsWithId); this.rightFixedColumnRows = this.makeColumnRows('right', colsWithId); this.rebuildData = this.makeDataWithSortAndFilter(); this.handleResize(); }, deep: true },demo
单表头：多表头：
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