Dammmien

var SA = function( a ) {

    a.has = function( v ) {
        var i = a.length;
        for ( i; i--; )
            if ( a[ i ] === v )
                return true;
        return false;
    };

Dammmien

var SD = {

    create: function( tag, attrs ) {
        tag = document.createElement( tag );
        for ( var attr in attrs ) tag[ attr ] = attrs[ attr ];
        return tag;
    },

    get: function( selector, context, undefined ) {
        var matches = {

Dammmien

(function() {
    console.clear();
    var loadTimes = chrome.loadTimes();
    console.log( "requestTime................. " + ( loadTimes.startLoadTime - loadTimes.requestTime ).toFixed( 2 ) + 's' );
    console.log( "commitLoadTime.............. " + ( loadTimes.commitLoadTime - loadTimes.startLoadTime ).toFixed( 2 ) + 's' );
    console.log( "finishDocumentLoadTime...... " + ( loadTimes.finishDocumentLoadTime - loadTimes.startLoadTime ).toFixed( 2 ) + 's' );
    console.log( "finishLoadTime.............. " + ( loadTimes.finishLoadTime - loadTimes.startLoadTime ).toFixed( 2 ) + 's' );
})()

Dammmien

"abcdefghijklmnopqrstuvwxyz".match( /.{1,4}/g );

// [ "abcd", "efgh", "ijkl", "mnop", "qrst", "uvwx", "yz" ]

Dammmien

function shuffle( a ) {
    var m = a.length, t, i;

    while ( m ) {
        i = Math.floor( Math.random() * m-- );
        t = a[ m ];
        a[ m ] = a[ i ];
        a[ i ] = t;
    }

Dammmien

var rgbToHex = ( r, g, b ) => "#" + ( ( 1 << 24 ) + ( r << 16 ) + ( g << 8 ) + b ).toString( 16 ).slice( 1 );

var hexToRgb = ( hex ) => [ parseInt( hex.substring( 1, 3 ), 16 ), parseInt( hex.substring( 3, 5 ), 16 ), parseInt( hex.substring( 5, 7 ), 16 ) ];

rgbToHex( 175, 25, 70 ); // #af1946

hexToRgb( "#af1946" ); // [ 175, 25, 70 ]

Dammmien

'#' + Math.floor( Math.random() * 16777215 ).toString( 16 );

Dammmien

// if no duplicate in the first list
a1.concat( a2.filter( i => a1.indexOf( i ) === -1 ) );


// if duplicate in the first list
a1.concat( a2 ).reduce( function( p, c, i, a ) {
    if ( p.indexOf( c ) === -1 ) p.push( c );
    return p;
}, [] );

Dammmien

var factorial = ( i, a ) => i < 2 ? a || 1 : factorial( i - 1, ( a || 1 ) * i );

console.log( factorial( 5 ) ); // 120

Dammmien

var ua = navigator.userAgent,
    isApple = /iPad/i.test(ua) || /iPhone/i.test(ua),
    isAndroid = ua.toLowerCase().indexOf("android") > -1;

if(isAndroid || isApple) {
  // do something ;
}