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Javascript 2021-09-27 23:11:02
how to use the map method in javascript
const myArray = ['Sam', 'Alice', 'Nick', 'Matt']; // Appends text to each element of the array const newArray = myArray.map(name => { return 'My name is ' + name; }); console.log(newArray); // ['My name is Sam', 'My Name is Alice', ...] // Appends ... Add solution -
Javascript 2021-09-26 15:43:02
javascript remove duplicate in two arrays
// 1. filter() function removeDuplicates(array) { return array.filter((a, b) => array.indexOf(a) === b) }; // 2. forEach() function removeDuplicates(array) { let x = {}; array.forEach(function(i) { if(!x[i]) { x[i] = true } }) r... Add solution -
Javascript 2021-09-25 22:59:03
javascript map return array with distinc values
//ES6 let array = [ { "name": "Joe", "age": 17 }, { "name": "Bob", "age": 17 }, { "name": "Carl", "age": 35 } ]; array.map(item => item.age) .filter((valu... Add solution -
Javascript 2021-09-22 17:29:04
convert decimal to hex
// function to convert decimal to hexadecimal function convertToHex(element,index,array) { return element.toString(16); } var decArray = new Array(23, 255, 122, 5, 16, 99); var hexArray = decArray.map(convertToHex); alert(hexArray); // 17,ff,a,5,10,63 Add solution -
Javascript 2021-09-20 15:28:02
javascript map array
const myArray = ['Sam', 'Alice', 'Nick', 'Matt']; // Appends text to each element of the array const newArray = myArray.map(name => { return 'My name is ' + name; }); console.log(newArray); // ['My name is Sam', 'My Name is Alice', ...] // Appends ... Add solution
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