how to concatenate javascript using $ code example
Example 1: javascript concat
let chocholates = ['Mars', 'BarOne', 'Tex'];
let chips = ['Doritos', 'Lays', 'Simba'];
let sweets = ['JellyTots'];
let snacks = [];
snacks.concat(chocholates);
// snacks will now be ['Mars', 'BarOne', 'Tex']
// Similarly if we left the snacks array empty and used the following
snacks.concat(chocolates, chips, sweets);
//This would return the snacks array with all other arrays combined together
// ['Mars', 'BarOne', 'Tex', 'Doritos', 'Lays', 'Simba', 'JellyTots']
Example 2: string javascript concatenation
var dest = new String("");
var src = new String("aze");
var ar = new Array();
...
ar.push(src);
ar.push(src);
...
dest = ar.join("");