If i had an array of days names and i wanted to check for example if sunday - first letter capital or small - in this array what would be the best thing to do ?
You may also use Array.indexOf:
var days = [monday,
tuesday,
wednesday,
thursday,
friday,
saturday,
sunday];
function isInArray(days, day) {
return days.indexOf(day.toLowerCase()) > -1;
}
isInArray(days, Sunday); // true
isInArray(days, sunday); // true
isInArray(days, sUnDaY); // true
isInArray(days, Anyday); // false
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