.push() returns the new length of the array. [‘one’].push(‘two’); // returns 2 (array length is 2) [‘one’, ‘two’].push(‘something’); // returns 3 (array length is 3) In your case: [].push([]); // array length is 1 where you get array within array. [[]] 0 solved Why does [].push([]) return 1? [duplicate]
id must be unique if you are calling with id script <script type=”text/javascript”> function boxclick(checkvalue,str,chk) { var lfckv = document.getElementById(chk).checked alert(lfckv) alert(checkvalue); alert(str); if(lfckv) { //code on checked } else { //code on unchecked } } </script> html <ul> <li><input type=”checkbox” id=”value1″ value=”wsn/qabala.php” onclick=”boxclick(this.value,’qabala’,’value1′)” /> Qabala</li> <li><input type=”checkbox” id=”value2″ value=”wsn/ismailli.php” onclick=”boxclick(this.value,’ismailli’,’value2′)” /> Ismayilli</li> <li><input type=”checkbox” … Read more
$mydate = “2015-10-01”; if(strtotime($mydate) > strtotime(date(‘Y-m-d’))) { echo “<td style=”background-color:green;”>testing</td>”; } else { echo “<td>testing</td>”; } 1 solved Change of td color with php if else statement [closed]
Although this is not the answer you are looking for: Everyting that you have to transmit to the client to render is on the client. So even if you break the usual functionality of a web browser by denying certain actions, that will not make your application more secure. There is no such thing as … Read more
You probably need to change value to innerHTML or innerText, in your setInterval function. document.getElementById(id).innerHTML= result; I’m not sure what changed to break it though. http://jsfiddle.net/g2Lodf23/ 1 solved Code Mysteriously Stops Working [closed]
You need to add the validation to the form element and set the required rule to the checkbox <form id=”myform”> <input type=”checkbox” value=”agree” name=”agree” id=”agree” /> <input type=”submit”> </form> then jQuery(function ($) { $(“#myform”).validate({ rules: { agree: { required: true } }, messages: { agree: “Please agree the terms and conditions” } }); }); Demo: … Read more
Here is the flow of the code you have shared 1. When the component mounts, it calls a function 2. this function “fetchPostsWithRedux” then dispatches actions also, it send an api call to server to fetch data 3. when the data is received component re-renders with updated data as prop. Now if you want to … Read more
You could use a dynamic approach for any size of items, by taking one element out of the array, get the rest combinations and later put that element to the former position into the array. Then take the actual element and add it to the result set. Then try to get the combinations of the … Read more
To avoid Warn: Possible unhandled Promise Rejection (id:0) useEffect(() => { fetchData(); }, []); async function fetchData(){ try{ const requestArray = await Promise.all(ids?.map((id) => { return fetch(`https://jsonplaceholder.typicode.com/posts/${id}`) .then((response) => response.json()) .then((dataLoc) => { return dataLoc.title; }) .catch((error) => console.error(error)); })); console.log(JSON.stringify(requestArray)); setDataLoc(requestArray); } catch (error) { console.log(error); } } solved How to get multiple API … Read more
With JavaScript 1.6 / ECMAScript 5 you can use the native filter method of an Array in the following way to get an array with unique values: function onlyUnique(value, index, self) { return self.indexOf(value) === index; } // usage example: var a = [‘a’, 1, ‘a’, 2, ‘1’]; var unique = a.filter(onlyUnique); console.log(unique); // [‘a’, … Read more
You should add a key to each child as well as each element inside children. This way React can handle the minimal DOM change. In your code, each <TableRowItem key={item.id} data={item} columns={columnNames}/> is trying to render some children inside them without a key. Check this example. Try removing the key={i} from the <b></b> element inside … Read more
For custom-delimited date formats, you have to pull out the date (or time) components from a DateTimeFormat object (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want. To do this, you can use DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as … Read more
First, create an object using the given data and collect the keys and their values. { A: [1, 2], C: [“FOO”, “BAR”] } Then, get the Cartesian product of this object. The function getCartesian separates all key/value pairs and builds a new Cartesian product by iterating over the values, if an array with objects call … Read more
You want to examine all the objects in your input array, then push it into an array identified by the first letter of the name in your object. var input = [{ name: “John”, id: “123” }, { name: “Josh”, id: “1234” }, { name: “Charlie”, id: “1234253” }, { name: “Charles”, id: “123345” } … Read more
Because the program didn’t explicitly specify a format for the data output, sharp generated the output in the same format as the image source. In this case the input format was PNG, so your data buffer content is also in PNG format. That’s why the first 8 bytes of data are the standard PNG file … Read more