array map javascript
const array1 = [1, 4, 9, 16];
// pass a function to map
const map1 = array1.map(x => x * 2);
console.log(map1);
// expected output: Array [2, 8, 18, 32]array map javascript
const array1 = [1, 4, 9, 16];
// pass a function to map
const map1 = array1.map(x => x * 2);
console.log(map1);
// expected output: Array [2, 8, 18, 32]new map js
let utilisateurs = new Map()
utilisateurs.set('Mark Zuckerberg' ,{
email: '[email protected]',
poste: 'PDG',
})
utilisateurs.set ('bill Gates',{
email: '[email protected]' ,
poste : 'sauver le monde' ,
})
console.log(utilisateurs);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 the index of each element with it's value
const anotherArray = myArray.map((value, index) => index + ": " + value);
console.log(anotherArray); // ['0: Sam', '1: Alice', '2: Nick', ...]
// Starting array is unchanged
console.log(myArray); // ['Sam', 'Alice', 'Nick', 'Matt']array map
let numbers = [1, 2, 3, 4]
let filteredNumbers = numbers.map(function(_, index) {
if (index < 3) {
return num
}
})
// index goes from 0, so the filterNumbers are 1,2,3 and undefined.
// filteredNumbers is [1, 2, 3, undefined]
// numbers is still [1, 2, 3, 4]javascript map
.wp-block-code {
border: 0;
padding: 0;
}
.wp-block-code > div {
overflow: auto;
}
.shcb-language {
border: 0;
clip: rect(1px, 1px, 1px, 1px);
-webkit-clip-path: inset(50%);
clip-path: inset(50%);
height: 1px;
margin: -1px;
overflow: hidden;
padding: 0;
position: absolute;
width: 1px;
word-wrap: normal;
word-break: normal;
}
.hljs {
box-sizing: border-box;
}
.hljs.shcb-code-table {
display: table;
width: 100%;
}
.hljs.shcb-code-table > .shcb-loc {
color: inherit;
display: table-row;
width: 100%;
}
.hljs.shcb-code-table .shcb-loc > span {
display: table-cell;
}
.wp-block-code code.hljs:not(.shcb-wrap-lines) {
white-space: pre;
}
.wp-block-code code.hljs.shcb-wrap-lines {
white-space: pre-wrap;
}
.hljs.shcb-line-numbers {
border-spacing: 0;
counter-reset: line;
}
.hljs.shcb-line-numbers > .shcb-loc {
counter-increment: line;
}
.hljs.shcb-line-numbers .shcb-loc > span {
padding-left: 0.75em;
}
.hljs.shcb-line-numbers .shcb-loc::before {
border-right: 1px solid #ddd;
content: counter(line);
display: table-cell;
padding: 0 0.75em;
text-align: right;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
white-space: nowrap;
width: 1%;
}let map = new Map([iterable]);
Code language: JavaScript (javascript)Copyright © 2021 Codeinu
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