Array.isArray(target)
arr1.concat(arr2[,arr3,…])
arr.map(fn[,thisTarget])
arr.forEach(fn[,thisTarget])
arr.push(item1[,item2, …])
arr.unshift(item1[,item2, …])
arr.pop()
arr.shift()
arr.splice(index, length,[item1, item2, …])
arr.includes(target)
arr.indexOf(target)
arr.lastIndexOf(target)
arr.find(fn[,thisTarget])
arr.findIndex(fn[,thisTarget])
arr.every(fn[,thisTarget])
arr.some(fn[,thisTarget])
arr.filter(fn[,thisTarget])
arr.sort(fn)
arr.reverse()
arr.join([string])
arr.reduce(fn)
arr.reduceRight(fn)