javascript one line if without else code example

Example 1: one line if else if statement javascript

var variable = (condition) ? (true block) : ((condition2) ? (true block2) : (else block2))

Example 2: if statemnt shorthand js without else

//else if statement shorthand
y = (x === 2) ? 1 : (x === 3) ? 2 : (x === 4) ? 7 : 1000;