A javascript variable prefixed with a $ is:

console.log(3%2&1); The console displays:

Consider the following variable assignments: var a = 1; var b = 2; var r = a | b; The value of r is:

Read the following function : function custom_indexOf( array, value ){ for(var i = 0; i < array.length; i++){ if(array[i] == value) return i; } } The property 'length' of array is calculated at every loop beginning (true or false)

What's the output? if (new Boolean(false)) console.log('True'); else console.log('False');

Infinity * null will return :

How do you locate the first X in a string variable named txt?

Which represents when an Array object returns a string representing the array and its elements?

How you can check Left mouse button click property? document.addEventListener('mousedown', buttonpropertys, false);

Which are structural patterns?

Javascript JSON data manipulation- How can you access first, last name properties in data object using the following snippet? var data={'users':[ {'firstName':'Ali', 'lastName':'Rehman', 'birthday': { 'month':'January', 'day':20, 'year':1983 } } ]}