JSFiddle - React, Tailwind, and code Playground

by Satpal Singh

JavaScript

var falseValues,
    i,
    l,
    value;
falseValues = [
    '',
    NaN,
    undefined,
    null,
    0,
    false
];
i = 0;
l = falseValues.length;
for(; i < l; i++) {
    value = falseValues[i];
    if(value) {
        console.log("`value` %s is true", value);
    }
    if(!!value) {
        console.log("`!!value` %s is true", value);
    }
    if(!value) {
        console.log("value %s is false", value);
    }
}