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How to remove item if exist before and add current as new ?

How to remove item if exist before and add current as new ?

ahmed elbarbary

6y788TypeScript

problem

How to remove item if exist before and add current as new ?

I need when add statusdate exist before on collectfulldata then remove exist and and add new one

and if not exist add it .

meaning i dont need two statusdata with same name exist two time .

and if statusdata not exist add it .

initcollectdropdowslist=[];
collectfulldata:string;
let textdata=$event.target.options[$event.target.options.selectedIndex].text;
let statusdata:any = this.FilterBinddata.filter(s=>s.reportSource==textdata)[0].reportSource2;
this.collectfulldata= statusdata + "=" + "'" + textdata + "'";
this.initcollectdropdowslist.push(this.collectfulldata);
console.log("full data is " + this.initcollectdropdowslist)

current result

full data is Text5='Lifecycle',Text6='Package',Text7='Parametric'

Expected result

if add Text8='car' to collectfulldata add it because not exist

if add Text6='OBS' add it but remove exist as Text6='Package'

4 Replies

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Arvind Kushwaha6y ago
Accepted answer
Hi Ahmed,

You can use this one.
const index = this.initcollectdropdowslist.findIndex(x => x.statusdata === statusdata);
if(index > -1) {
this.initcollectdropdowslist.splice(index, 1, this.collectfulldata);
} else {
  this.initcollectdropdowslist.push(this.collectfulldata);
}
ahmed elbarbary6y ago
sorry for misunderstood
result not correct
status dataText1
reportdetails.component.ts:388 not exist
reportdetails.component.ts:391 the value selectedText1='10Gtek Transceivers Co. Ltd'
reportdetails.component.ts:380 status dataText1
reportdetails.component.ts:388 not exist
onChange($event)
{
let textdata=$event.target.options[$event.target.options.selectedIndex].text;
let statusdata:any = this.FilterBinddata.filter(s=>s.reportSource==textdata)[0].reportSource2;
console.log("status data" + statusdata)
this.collectfulldata= statusdata + "=" + "'" + textdata + "'";
const index = this.initcollectdropdowslist.findIndex(x => x.statusdata === statusdata);
if(index > -1) {
console.log("exist");
this.initcollectdropdowslist.splice(index, 1);
} else {
console.log("not exist");
this.initcollectdropdowslist.push(this.collectfulldata);
}
console.log("the value selected" + this.initcollectdropdowslist)
}
reportdetails.component.ts:391 the value selectedText1='10Gtek Transceivers Co. Ltd',Text1='2J s.r.o.'
i think result is not correct why it add text1 another time
i dont need to repeate text1
status data must be exist one time only
but here exist two time
full code as below:
ahmed elbarbary6y ago
thank you for reply
this is good but it remain small point
when index >-1
i need to add current record after remove so that
how can i do add after remove on if statment
if(index > -1) {

this.initcollectdropdowslist.splice(index, 1);
// add current so that i need to add current
Arvind Kushwaha6y ago
Hi Ahmed,

Please try this code
const index = this.initcollectdropdowslist.findIndex(x => x.statusdata === statusdata);
if(index > -1) {
this.initcollectdropdowslist.splice(index, 1);
} else {
  this.initcollectdropdowslist.push(this.collectfulldata);
}