concat js mdn
const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const array3 = array1.concat(array2);
console.log(array3);
// expected output: Array ["a", "b", "c", "d", "e", "f"]concat js mdn
const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const array3 = array1.concat(array2);
console.log(array3);
// expected output: Array ["a", "b", "c", "d", "e", "f"]javascript concat
const num1 = [2, 4, 5, 3, 8, 9, 11, 33, 44];
const num2 = [22, 33, 44, 55, 66, 77, 88];
const concatNumbers = num1.concat(num2)
console.log(concatNumbers)
//Expected output:
/*[
2, 4, 5, 3, 8, 9,
11, 33, 44, 22, 33, 44,
55, 66, 77, 88
]
*/js concatenate strings
const str1 = 'Hello';
const str2 = 'World';
console.log(str1 + str2);
>> HelloWorld
console.log(str1 + ' ' + str2);
>> Hello Worldhow to concatenate in javscript
var one = 'Hello';
var two = 'World';
console.log(one + two);
It will print: HelloWorld
console.log(one + ' ' + two);
It will print: Hello Worldjavascript concatenation
// the fastest way to string concat in cycle when number of string is less than 1e6
// see https://medium.com/@devchache/the-performance-of-javascript-string-concat-e52466ca2b3a
// see https://www.javaer101.com/en/article/2631962.html
function concat(arr) {
let str = '';
for (let i = 0; i < arr.length; i++) {
str += arr[i];
}
return str;
}javascript string concatenation
var totn_string = '';
console.log(totn_string.concat('Tech','On','The','Net'));
//The following will be output to the web browser console log:
TechOnTheNetCopyright © 2021 Codeinu
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