const arr1 = [ 1, 2, 3 ]; const arr2 = [ 3, 5, 4, 2, 7, 0, 1, 10 ]; let hasAllElems = true; for (let i = 0; i < arr1.length; i++){ if (arr2.indexOf(arr1[i]) === -1) { hasAllElems = false; break; } } console.log(hasAllElems); // output: true
Preview:
downloadDownload PNG
downloadDownload JPEG
downloadDownload SVG
Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!
Click to optimize width for Twitter