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How to check the array is of how many dimension in javascript? [closed]

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For example I have an array as follows & expected output is given.
In javascript how can we determine dynamically how many levels are there in my array ary.
var ary = ["a","b",["c","d"],"e",["f","g",["h","i"],"j"]];
Output: 3
var ary = ["a","b",["c","d"],"e",["f","g","i"]];
Output: 2
var ary = ["a","b",["c",["d"]],"e",[["f","g",["i","j"]],"k"]];
Output: 4

Here is a reccursive function that will traverse through the depths of the array and track the maximum of it. Note that the tracking is done via properties attach to the function itself.
var ary1 = ["a","b",["c",["d"]],"e",[["f","g",["i","j"]],"k"]];
function getDimension(arr, start) {
//Attach depth tracking properties to the function
if (start){
getDimension.depth = 0;
getDimension.maxDepth = 0;
}
//Track max depth
getDimension.depth++
if (getDimension.depth > getDimension.maxDepth)
getDimension.maxDepth++;
//Manage recursion
for (let element of arr)
if (element instanceof Array)
getDimension(element);
getDimension.depth--;
//In first level at this point
if (getDimension.depth === 0)
return getDimension.maxDepth;
}
let d = getDimension(ary1, true);
console.log(d);

Data in Array is Incomplete [closed]

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Data in Array is Incomplete
it get only last item.
I need to get all item.
how to fix this?
source code
let GetProvinceWithSumCovid19 = [];
for (let index = 0; index < GetProvince.length; index++) {
GetProvinceWithSumCovid19 = dataFromAmCharts.filter(x => x.name.indexOf(GetProvince[index].providersEN) > -1);
GetProvinceWithSumCovid19.push({
value: GetProvince[index].sumCovid19
})
};
console.log(GetProvinceWithSumCovid19);

The first line in the for loop overwrites GetProvinceWithSumCovid19

There's not a lot of information to go off of here, but looking at the second image of the output, I believe you're trying to do something like this:
const getProvinceWithSumCovid19 = GetProvince.map((item, index) => {
return {
[dataFromAmCharts.filter(x => x.name.indexOf(GetProvince[index].providersEN) > -1)],
value: GetProvince[index].sumCovid19
}
});
console.log(getProvinceWithSumCovid19);

Instead of assigning to GetProvinceWithSumCovid19 variable, push to it.
var GetProvinceWithSumCovid19 = [];
for (let index = 0; index < GetProvince.length; index++) {
GetProvinceWithSumCovid19.push(dataFromAmCharts.filter(x => x.name.indexOf(GetProvince[index].providersEN) > -1));
GetProvinceWithSumCovid19.push({
value: GetProvince[index].sumCovid19
})
};
console.log(GetProvinceWithSumCovid19);
The output structure would be like:
[[{id:, name:},{id:, name:}], {value:2}, [{id:, name:}], {value:1}]
But I really doubt whether this is the structure you want. The required output structure is not clear in your question.

How to search in localstorage for specific word and get entire key and value? [closed]

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On click i created localstorage item "storageKey__list" and value is "example.com"
I need to get all item keys and values ends with "__list" and then get entire key and value.
Result must be:
"storageKey__list , example.com"

You could grab the entries in localStorage using Object.entries() and then use .filter() to obtain only the entires ending in "__list" by using .endsWith():
Object.entries(localStorage).filter(([key]) => key.endsWith('__list'));
Output:
[["storageKey__list", "example.com"]]
A more browser friendly version of the code above could be to use the following:
Object.keys(localStorage).filter(function(key) {
return /__list$/.test(key);
}).map(function(key) {
return [key, localStorage.getItem(key)];
});
Output:
[["storageKey__list", "example.com"]]

Try this:
/** #type {[string, string][]} */
const keyValuePairs = [];
for (let i = 0, l = localStorage.length; i < l; i++) {
const key = localStorage.key(i);
if (key.endsWith("__list"))
keyValuePairs.push([ key, localStorage.getItem(key) ]);
}
console.log(keyValuePairs);

JavaScript array push not working [closed]

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Closed 7 years ago.
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I am trying to push a value into an array and it is giving me this error in the developer tools.
Uncaught TypeError: Cannot read property 'push' of null
Here is the code that it seems to be sticking on, word and local word were defined earlier like this.
var word = [];
var localWord = [];
function setLocalArray() {
// first get words from text field and update word array.
word = document.getElementById("words").value.split(',');
// store word array in localStorage
for(var i=0; word.length > i; i++) {
var key2 = "part"+i;
localStorage.setItem(key2,word[i]);
localWord.push(key2);
}
localStorage.setItem("localWord",JSON.stringify(localWord));
text2Array();
reveal();
}
localWord.push(key2); Seems to be what it is getting stuck on. I have looked at everything I can find on the push method and I can't seem to find why it is giving me this error. Help?
Here is the full code at jsfiddle http://jsfiddle.net/runningman24/jnLtpb6y/

Try this...
var localWord = new Array(); //create new array
var word = new Array();
function setLocalArray() {
word = document.getElementById("words").value.split(',');
// store word array in localStorage
for(var i=0; word.length > i; i++) {
var key2 = "part"+i;
localStorage.setItem(key2,word[i]);
localWord.push(key2);
}
}

I found the problem, if you look in the jsfiddle I posted I am trying to pull localWord from localStorage even though it doesn't exist and so it sets it to null. Thank you to all for the ideas and contributions.

You could try isolating the scope of your variable using the module pattern:
var arrayManager = (function () {
var word = [];
var localWord = [];
function setLocalArray() {
// first get words from text field and update word array.
word = document.getElementById("words").value.split(',');
// store word array in localStorage
for(var i=0; word.length > i; i++) {
var key2 = "part"+i;
localStorage.setItem(key2,word[i]);
localWord.push(key2);
}
localStorage.setItem("localWord",JSON.stringify(localWord));
text2Array();
reveal();
}
return {
setLocalArray:setLocalArray
} ;
}());
and the from the outside you have to simply call arrayManager.setLocalArray()

Convert string into array of int [closed]

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I want to convert "1,2,3" to [1,2,3].
But there is an exception when converting "" to array. Because I get [""]. That is not valid for my case. So I need to check is it number or String. Let see this in code
function someWayToParse(some_string) {
var final_product = [];
var tmp_array = some_string.split(',');
//if some_string == "" tmp_array will result [""];
if (tmp_array[0].length===0)
return [];
for (var item in tmp_array)
final_product.push(parseInt(tmp_array[item], 10));
return final_product;
}
var stringToParse = "1,2,3";
var array_of_ints = someWayToParse(stringToParse);
I am just looking the best way to do this in a function and avoid possible mistakes.
Please be memory efficient, for my curiosity's sake.

Smaller code for it would be:
function myConverter(string) {
if (!string) return [];
return string.split(',').map(Number);
}
console.log(myConverter('1,2,3'));