Develop Reference

Filter with a part of input

I want a method to find, for example: if we have the name in input like "Gulliver", we need to find all objects in the array that contains that word.
I have this actually :
let data = this.articles.filter(d => d.name.toUpperCase() === this.search.toUpperCase())
But it's only finding the word who has been corresponding... between articles.name and my text input.
Thank you

You just need to use include or contains in your filter.
let data = this.articles.filter(d => d.name.toUpperCase().includes(this.search.toUpperCase()))

Using maps over template literals

so I need to print a boolean value if the given string contains [[placeholder:var3]] but the var3 will be dynamically fed from an array as belwo:
const delmethod = ['all', 'email', 'sms', 'fax', 'voice', 'voicemail', 'pager', 'pagerTwoWay'];
let languages = organizationLocales.map(a => a.locale);
let variabless = alertDetails.variables?.map(k => k.name); languages && languages.length > 0 && languages.map(lang => { delmethod.map(i => {
if ( alertDetails.alertMessage?.[${lang}]?.[i]?.variabless?.some(el => [i] === [[placeholder:${el}]]) )
{ bodyContainsVariables = true; } }); })
I tried using map around the template literals but it is throwing me an error also tried like above eg but it checks only first value of the array, so can someone please help me solve this, I'd appreciate any help, thanks in advance.
updating the question with the actual PS. organizationLocales is an array and alertDetails is an object that has an variables array, Delmethod is an array is being used to check the different properties dynamically

[[placeholder:${variabless}]] yields [[placeholder:var1,var2,var3]]. It doesn't check the first variable. And that's not how Array.string.includes is supposed to be used. For checking exact match use the === operator.
In case you want to check if any of the array elements match the string you can use the Array.prototype.some method which returns a boolean value.
let any = variabless.some(el => s === `[[placeholder:${el}]]`)
If you want to find the element that matches with the string use the Array.prototype.find function.

You need to tell the index inside template literals becasue variabless is an array like this:
console.log(s.includes(`[[placeholder:${variabless[2]}]]`));
I hope it helps you.

To match against any value in variabless, you can test against a regular expression:
console.log(new RegExp(
`\\[\\[placeholder:(${variabless.join('|')})\\]\\]`
).test(s));

you're currently passing the whole array in
s.includes([[placeholder:${variabless}]])
and that's won't work, you need to specify which elemnt of the variables array you want to inject to your string which is element indexed with 2 so it should be like that
s.includes([[placeholder:${variabless[2]}]])

find value in complex object javascript

Basically I have a complex object that retrieves the GPT API (google publisher tag) with this function:
googletag.pubads().getSlots();
The object value is something like this:
I need to know if there is a way to compare the value of each property with an X value without getting a problem of recursivity (because the object is huge and i need to to that validation several times)
Also, I tried to convert that object into a JSON with JSON.stringify(), and then tried to get the value with a regex, faster, but with this option, I have the problem with Cyclic Object Value.
Any suggestions ?

it's more simple. try it to convert it into an array and later use a filter for comparative with your value.
var objGoogle = {};
var arrayObjectGoogle = [objGoogle];
var filter = arrayObjectGoogle.filter(function(obj){
obj.yourAttr == yourValue; });
this will give you a second array with the values found it. later, index the array for pick up the value do you need.

loop in JSON with undefined elements

I am trying to figure out how to retrieve the values of a json of which i do not know the number of elements.
Example:
my json can be something like
var json = ["fixelement1":"value1","fixelement2":"value2","fixelement3":"value3","variableelement4":"value4","variableelement5":"value5"]
or
var json =["fixelement1":"value1","fixelement2":"value2","fixelement3":"value3","variableelement7":"value7","variableelement8":"value8", "variableelementN":"valueN"]
the only thing that I know is that the first 3 elements are always the same.
I use .indexOf() to search a value in fixelement3. What I would like to do is, if I find the element, I would like to retrieve the name of all the following elements (which number is variable and that are unknown) and their values.
javascript or jquery would work for me, but I have no idea..
thank you in advance!

var json ={
"fixelement1":"value1",
"fixelement2":"value2",
"fixelement3":"value3",
"variableelement7":"value7",
"variableelement8":"value8",
"variableelementN":"valueN"
}
for(prop in json){
console.log('key ======> value', prop, '=====>', json[prop]);
}

Get ID by key in localStorage

In JS localStorage I can use
localStorage.getItem(key);
to get the value of the entry corresponding to the key in the key variable.
How can I get the entry's ID (instead of value) using the key?
Edit: sorry I must have confused people. What I mean by "key" is the numerical key - which is 0, 1, 2, 3 etc depending on how many items have been saved. Then I want to find out the ID it was stored as, eg foo in the below example, from the numerical key.
localStorage.setItem('foo', 'bar');

LocalStorage is implemented as a key-value pair ( see for instance: https://developers.google.com/web-toolkit/doc/latest/DevGuideHtml5Storage ) - so you don't have an id like an unique auto-incremented id in a database table.
However, you can access the elements using an index - to get the index of a key in localStorage, the only way I can find is to loop through each key until you find the one you are searching for, like this:
var findIndexOfKey = function(searchKey) {
for (var i = 0; i < localStorage.length; i++){
var key = localStorage.key(i);
if(key === searchKey)
return i;
}
return -1;
}
And then, to retrieve the key using the index, you can do:
localStorage.key(myIndex);
And to retrieve the value, you can do this:
localStorage.getItem(localStorage.key(myIndex));
... or this ( which would be equivalent to localStorage.getItem("myKey")):
localStorage.getItem(localStorage.key(findIndexOfKey("myKey")));

when setting the item you should give it's ID as a value and than when you call getItem(key) it should give it's ID as a return ex:
localStorage.setItem('foo', 'bar');
localStorage.getItem('foo'); // it should return the bar
take a look for this examples it may help : http://mathiasbynens.be/notes/localstorage-pattern

The answer:
localStorage.key(key);
Sorry, I realise I've got confused between what's actually called the key, which I called the ID, and it's numerical ID which I called the key...

I don't think it is possible. Can't you just make localStorage.setItem(yourkey,value)? I mean
localStorage.setItem(0,value)
localStorage.setItem(1,value)
This may be useful in loops for example.