truthy falsy.js

// truthy values
// true, {}, [], any number, "0"
// "false" inside quote or any quoted string
// new Date()
// Infinity, -Infinity
// biginteger number
if (true) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true
if ({}) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true

if ([]) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true

if ("0") {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true

if ("false") {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true

if (Infinity) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true

if (-Infinity) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
// condition is true



// 0, -0, 0n (big integer 0)
// ""
// false
// undefined
// null
// NaN

if (0) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
//condition is false
if (-0) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
//condition is false
if (0n) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
//condition is false
if (false) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
//condition is false
if (undefined) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}
//condition is false
if (NaN) {
    console.log('condition is true');
} else {
    console.log('condition is false');
}