搜索功能:https://blog.csdn.net/bbs11007/article/details/110948483
根據這個搜索功能的寫法,搜索的時候在本地調式木有問題,但是打包build爲dist後,放到服務器後顯示錯誤:Cannot read property ‘indexOf‘ of null
let result = this.pages1.values.filter(row => {//this.pages1.values這個是表內所有數據
//搜索那列的內容,這裏搜索name、id等列的內容
return row.name.indexOf(this.search1) > -1
|| row.id.indexOf(this.search1) > -1
|| row.code.indexOf(this.search1) > -1
|| row.note.indexOf(this.search1) > -1;
});
報錯信息:
TypeError: Cannot read property 'indexOf' of null
at app.43208ea5.js:1
at Array.filter (<anonymous>)
at o.sousuo (app.43208ea5.js:1)
at click (app.43208ea5.js:1)
at it (chunk-vendors.ffbff91e.js:34)
at o.n (chunk-vendors.ffbff91e.js:34)
at it (chunk-vendors.ffbff91e.js:34)
at o.In.e.$emit (chunk-vendors.ffbff91e.js:34)
at o.handleClick (chunk-vendors.ffbff91e.js:1)
at it (chunk-vendors.ffbff91e.js:34)
也就是說這個indexOf使用時判斷時前面的row.name這些報錯,所有需要使用indexOf前對這些進行判斷是否爲空
if(row.name!=null || row.id!=null || ....)這樣太麻煩
我們可以寫個方法:
contains(prop, str) { //打包到服務器:
if (prop === null || prop === undefined) {
return false;
} else {
return prop.indexOf(str) > -1;
}
},
然後修改寫法,我下面時VUE的寫法,調用contains是加this,如果是js就把this去掉
let result = this.pages1.values.filter(row => {//this.pages1.values這個是表內所有數據
//搜索那列的內容,這裏搜索name、id等列的內容
return this.contains(row.name, this.search1)
|| this.contains(row.id, this.search1)
|| this.contains(row.code, this.search1)
|| this.contains(row.note, this.search1)
});