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Other 2022-03-16 21:00:39
insert data at first position in array javascript
// Use unshift method if you don't mind mutating issue // If you want to avoid mutating issue const array = [3, 2, 1] const newFirstElement = 4 const newArray = [newFirstElement].concat(array) // [ 4, 3, 2, 1 ] console.log(newArray); Add solution -
Javascript 2022-03-03 01:30:14
how to find id in array javascript
//The find() method returns the value of the first element in the provided array that satisfies the provided testing function. const array1 = [5, 12, 8, 130, 44]; const found = array1.find(element => element > 10); console.log(found); // expected ... Add solution -
Javascript 2022-02-22 22:00:14
js unshift vs push
//The unshift() method adds one or more elements to the beginning of an array //and returns the new length of the array. const array1 = [1, 2, 3]; console.log(array1.unshift(4, 5)); // expected output: 5 console.log(array1); // expected output: Array [4... Add solution -
Javascript 2022-02-08 03:30:02
how to get property names from object using map method react
const arrayvals = [ { Number: 1, newNumber: "1", name: "FB" }, { Number: 3, newNumber: "2", name: "FB" }, { Number: 7, newNumber: "5", name: "GK" }, { Number: 8, newNumber: &quo... Add solution -
Other 2022-02-03 00:15:12
js return unique values from array of objects
const array = [ { id: 3, name: 'Central Microscopy', fiscalYear: 2018 }, { id: 5, name: 'Crystallography Facility', fiscalYear: 2018 }, { id: 3, name: 'Central Microscopy', fiscalYear: 2017 }, { id: 5, name: 'Crystallography Facility', fiscalY... Add solution -
Javascript 2022-02-02 20:50:35
react array find index
//The findIndex() method returns the index of the first element //in the array that satisfies the provided testing function. //Otherwise, it returns -1, indicating that no element passed the test. const array1 = [5, 12, 8, 130, 44]; const isLargeNumber ... Add solution -
Javascript 2022-02-02 04:01:33
convert array of string to array of objects javascript
const array = [ [ 'cardType', 'iDEBIT' ], [ 'txnAmount', '17.64' ], [ 'txnId', '20181' ], [ 'txnType', 'Purchase' ], [ 'txnDate', '2015/08/13 21:50:04' ], [ 'respCode', '0' ], [ 'isoCode', '0' ], [ 'authCode', ... Add solution
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