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If I select one value the I am getting value is like
val : "ABC"
But if I select multiple value my val is comming in array
val : ["ABC","DEF"].
Now because of this problem is neighther I can work on for single value nor multiple. Can anybody tell me how to handle this.
eg:
var myObj = {
data : "M1",
val : "Abc"
}
After adding another value it become
var myObj = {
data : "M2",
val : Abc,Def
}
function handleVal(val){
if ("string" === typeof val){
console.log("Do sth with string");
} else if (Array.isArray(val)){
console.log("Do sth with array")
}
}
handleVal("ABC");
handleVal([1,2])
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I'm trying to get data from my server and format that data into an indexed array and storing that in my store. The problem is when I try to manually define the indexes Redux automatically nulls any indexes that were undefined. Because I have one index with a very large number Redux indexes many unnecessary items and crashes.
Image of the bug:
Image of my code:
This happens because langStrings[i].LayoutTypeId is an huge number and if you do filteredLangStrings[langStrings[i].LayoutTypeId] = [] javascript creates an array of length langStrings[i].LayoutTypeId with all the elements set to null.
To avoid this, you should change your filteredLangStrings shape in this way:
let filteredLangStringsIndex = 0;
for(let i = 0; i < langStrings.length; i++) {
if(langStrings[i].LanguageId === langId) {
let index = langStrings[i].LayoutTypeId;
if (langStrings[i].Msg !== "") {
filteredLangStrings[filteredLangStringsIndex] = {};
filteredLangStrings[filteredLangStringsIndex].index = index;
filteredLangStrings[filteredLangStringsIndex].Msg = langStrings[i].Msg;
filteredLangStringsIndex ++;
}
}
}
This creates something like:
filteredLangStringsIndex = {"0": {index: 89746, Msg: "message"},
"1": {index: 54543, Msg: "another message"}, ...}
In this way you have a smaller filteredLangStringsIndex by keeping index and Msg informations.
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I have tried multiple codes but none of them have worked. I am trying to get the player's score or "dogs"(with the variable e) to save across sessions. Here's my code https://jsfiddle.net/Zontoon/yxkzd4cb/13/.
var e = 0; //is updated as the user clicks and buys, and I need to save the user's score.
https://jsfiddle.net/ChrisWong/qwf4ey7m/6/
// init or get score from localStorage
var e = localStorage.getItem('dogs') || 0;
e = parseInt(e);
document.getElementById("var").innerHTML = "Dogs: " + e;
...
function myfunction() {
e = e + buttonvalue;
// update the element and the score
updac();
...
}
...
// update the element and the score
function updac() {
document.getElementById("var").innerHTML = "Dogs: " + e;
// save to localStorage
localStorage.setItem('dogs', e);
}
Window.localStorage has the details and I suggest you to read it to understand how to use it.
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Closed 3 years ago.
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my code is not working at all
I need to solve this quiz
question is write convertToString as function !
this function should convert to string from parameter
ex )
let output = convertToString(120);
console.log(output); // --> '120'
let output2 = convertToString('hello');
console.log(output2); // --> 'hello'
let output3 = convertToString(true);
console.log(output3); // --> 'true'
this is what I wrote
function convertToString(anything) {
if (typeof anything === 'number' && typeof anything === 'boolean') {
let ret = anything.toString()
} else {
return anything;
}
return ret1;
}
convertToString(120);
The easiest way to convert anything is by making + operation with ""
function convertToString(anything) {
return "" + anything
}
console.log(convertToString(12));
console.log(convertToString(true));
console.log(convertToString('hello'));
console.log(convertToString(null));
console.log(convertToString(undefined));
Zero checks necessary.
function convertToString(val) {
return String(val);
// or return val.toString();
// or return '' + val;
}
console.log(convertToString(12));
console.log(convertToString(true));
console.log(convertToString('hello'));
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I can not test the return value of my function correctly at the time of return.
My exercise is this: I must compare two arrays and return true if they have at least one identical element but I need some assistance in figuring out what is wrong with my code:
function duplicateElements(m, n){
function test (element){
return n.includes(element);
}
return m.filter(test) != [] ? true:false;
}
You have to test the length property of the return value.
function duplicateElements(m, n) {
function test(element) {
return n.includes(element);
}
return m.filter(test).length > 0 ? true : false;
}
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I want to pass var number to callback, after loop.
For example Invenotry array has 25 items.
So after this 25 steps I want to pass number into callback (inCb), because I need to check number value.
var number = 0;
async.eachSeries(inventory, function(item, inCb) {
if(sth == othersthm)
{
number++;
}
}, function(numb) {
check number value and do sth
});
You can just use number:
var number = 0;
async.eachSeries(inventory, function(item, inCb) {
if (sth == othersthm) {
number++;
}
}, function() {
//check number value and do sth
console.log(number);
});