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Problems with Arrays on Angular 5

I have this problem:
I have a search in the component "Table" (PrimeNg).
This search is to start when I post a character in the input. The search is correct, but when I clean the entry, the values do not return. This line at the beginning is just for this "this.groupExamples = this.Examples group;" but apparently when I change the elements of an array the other is affected.
public getGrupoExames(){
this.serviceExames.getGrupoExames()
.subscribe((response)=> {
this.grupoExames = response;
this.grupoExamesAux = response;
}, (erro)=> {
console.log("Erro");
});
}
private filtarGrupoExames(event){
let filtro: GrupoExame[] = [];
this.grupoExames = this.grupoExamesAux.slice();
for(let i = 0; i < this.grupoExames.length; i++) {
let grupo = this.grupoExames[i];
let listaExames = [];
for(let j = 0; j < grupo.exames.length; j++){
let exame = grupo.exames[j];
if(exame.nome.toLowerCase().indexOf(event.toLowerCase()) == 0) {
listaExames.push(exame);
}
}
grupo.exames = listaExames;
filtro.push(grupo);
}
this.grupoExames = filtro;
}

I suppose that you display whatever is inside your grupoExames, if that is correct you can try this structure
if(event.target.value.length > 1) {
do the filter
}
else {
this.getGrupoExames();
}
Maybe another more ambiguous solution is to create a button to delete the filter and access to all the content .
Hope it helps you!

HTMLCollection() Values and Names to JSON

Problem:
Two forms, in hidden divs, which appear when you press the coressponding button. The Input gets parsed to JSON and sent with a request.
I can't use form or fieldset to wrap around the form for different reasons, so I used:
form = document.getElementById('formularEins').getElementsByTagName('input');
When I was still able to use form.elements (before I realised that the .elements property is not supported on fieldsets by IE) I used this to generate JSON from the input:
(In this case form = document.getElementsByClassName('formOne')[0];
Const formToJSON = elements => [].reduce.call(elements, (data, element) => {
if (isCheckbox(element)) {
//data[element.name] = (data[element.name] || []).concat(element.value);
data[element.name] = element.value;
} else if (isMultiSelect(element)) {
data[element.name] = getSelectValues(element);
} else {
data[element.name] = element.value;
}
}
return data;
},);
Question:
How can you convert the Input to JSON for a HTMLCollection and its items like above?
I tried - and failed with different versions of the following:
var formToJSON = function formToJSON(form) {
for (var i = 0; i < form.length; i++) {
var item = form[i];
data[item.name] = item.value; }
};

You have to define data variable as object. Try following formToJSON function.
var formToJSON = function(form) {
var data = {};
for (var i = 0; i < form.length; i++) {
var item = form[i];
data[item.name] = item.value;
}
return data;
}

Javascript, var contains

I currently use this script:
wHandle.setNick = function (arg) {
userNickName = arg;
var fnicks = ["porno","ibne","amcık","amcik","piç","salak","orospu","pkk","sik","kürdistan","kurdistan","kÜrdistan","kürt","sikeyim","sıkeyim","götoş","yönetici","YÖNETICI","YONETICI","yonetici","admın","admin","yarah","yarrah","agario","sike","s1ke","anan"];
var nctr = arg.toLowerCase();
if(fnicks.indexOf(nctr) > -1) {
alert("Unknown Nickname!");
} else {
hideOverlays();
sendNickName();
wjQuery("#mini-map-wrapper").show();
userScore = 0
wjQuery(".btn-needs-nick").prop("disabled", false);
}
};
I wanted to make some kind of filter, so that it blocks these nicknames BUT it isn't covering all of my cases. For example it blocks porno but not pornoo
I want it to use if(contains).

You've essentially done your logic backwards. Instead of checking if the nickname is in your block list, you'd be better served checking if an element of your blocklist is in your nickname like so:
var nick = args.toLowerCase();
for (var i; i < fnicks.length; i++) {
if (nick.indexOf(fnicks[i]) != -1) {
//bad name!
}
}

well I would just loop through the array, and search if the argument you pass (nctr in that case) contains the current entry (fnicks[i]).
you can replace the console.log() by your usual alert()
var arg = "pornoo";
var fnicks = ["porno","ibne","amcık","amcik","piç","salak","orospu","pkk","sik","kürdistan","kurdistan","kÜrdistan","kürt","sikeyim","sıkeyim","götoş","yönetici","YÖNETICI","YONETICI","yonetici","admın","admin","yarah","yarrah","agario","sike","s1ke","anan"];
var nctr = arg.toLowerCase();
for(var i=0,c=fnicks.length;i<c;i++) {
if(nctr.indexOf(fnicks[i]) > -1) {
console.log('boom');
}
}

Spliting String and getting appropriate value in JavaScript

I have a string where |||| means next to it is the directory. ||| means the user is allowed to access this directory and || means the files allocated to these users follow.
I need to find allocated file names of a specific user from this string. I have tried to split the string and assign values to an array but I am not able to get the result I'm looking for.
This is the string:
||||Root|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,||||1400842226669|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,||||1401191909489|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,LimitTest_20140528164643.xlsx,
And here is my attempt:
function getData() {
var user = 'km11285c';
var value = "||||Root|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,||||1400842226669|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,||||1401191909489|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,LimitTest_20140528164643.xlsx,";
var users = null;
var files = null;
var Dir = value.split("||||");
var arrayLength = Dir.length;
for (var i = 0; i < arrayLength; i++) {
users = Dir[i].split("|||");
}
return users;
}
console.log(getData());
and the jsFiddle

I changed your jsfiddle example a bit so maybe you need to change the code here and there, but something like this should work:
function buildTree(data) {
var tree = [];
var dirs = data.split("||||");
// Remove the first entry in the array, since it should be empty.
dirs.splice(0, 1);
for (var i = 0; i < dirs.length; ++i) {
var tempArray = dirs[i].split("|||");
var dirName = tempArray[0];
var usersAndFiles = tempArray[1];
tempArray = usersAndFiles.split("||");
var users = tempArray[0];
var files = tempArray[1];
var treeDir = { name: dirName };
treeDir.users = users.split(",");
treeDir.files = files.split(",");
tree.push(treeDir);
}
return tree;
}
function getData() {
var user = 'km11285c';
var value="||||Root|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,||||1400842226669|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,||||1401191909489|||adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,km11285c,km61052,km61639c,adil001,kl04707c,km47389,km58184,km61052,kq61023c,||LimitTest_20140528164643.xlsx,testTask2_20140528140033.xlsx,testTask1_20140528135944.xlsx,testTask2_20140528140033.xlsx,LimitTest_20140528164643.xlsx,";
var tree = buildTree(value);
for (var i = 0; i < tree.length; ++i) {
var dir = tree[i];
if (dir.users.indexOf(user) >= 0) {
console.log("User '" + user + "' has access to directory '" + dir.name + "', which contains these files: " + dir.files.join(","));
}
}
}
getData();

JSON.stringify comes back empty?

I'm trying to json serialize an array as follows:
function postToDrupal(contacts, source, owner) {
(function ($) {
var contact, name, email, entry;
var emails = [];
var post_object = {};
for (var i = 0; i < contacts.length; i++) {
contact = contacts[i];
emails[i] = {};
emails[i]['name'] = contact.fullName();
emails[i]['email'] = contact.selectedEmail();
console.log(contacts.length)
}
post_object['emails']=emails;
post_object['source']=source;
post_object['owner']=owner;
$.post("/cloudsponge-post",JSON.stringify(post_object),function(data) {
window.location.href = "/after-import";
});
}(jQuery));
}
The problem is, the post comes back empty. Without JSON.stringify() I get all the elements (but there are thousands of them, which can hit some servers limits, so they need to be serialized). Any help would be much appreciated.

The problem was this. When the request to the server is of type JSON, it's not strictly a POST, so PHP does not populate the $_POST field. In order to retrieve the data, it must be read directly from the request, in other words, instead of using $_POST, use:
$data=file_get_contents("php://input");

You don't need to call JSON.stringify, $.post accepts an object, check $.post.
Code to post just a few emails at a time :
function postToDrupal(contacts, source, owner) {
var pending = 0, limit = 10;
var post_patch = function(emails) {
var post_object = {};
post_object['emails']=emails;
post_object['source']=source;
post_object['owner']=owner;
pending++;
$.post("/cloudsponge-post", post_object,function(data) {
if(pending-- == 0) {
window.location.href = "/after-import";
}
});
}
(function ($) {
var contact, emails = [];
for (var i = 0; i < contacts.length; i++) {
contact = contacts[i];
emails[i] = {};
emails[i]['name'] = contact.fullName();
emails[i]['email'] = contact.selectedEmail();
console.log(contacts.length)
if(limit-- == 0) {
limit = 10
post_patch(emails);
contact = null; emails = {};
}
}
}(jQuery));
}