如何通过循环创建表达式和逻辑运算符的循环 - javaScript？

Question

If I have An array of value and I want to create logical operators while I do a loop over these values

const values = [{from: 2, to: 8}, {from: 11, to:20} ..... ]

to get a result like this

return (8 > 2) || (20 > 11) || .......

How I can do this with javascript if I want to create something complex like

   const time = [{ from: '2021-07-30', to: '2021-07-20' }, { from: '2021-07-05', to: '2021-07-02' }, ......]
    const disableDates = (date) => {

        time.forEach(element => {
            return (moment(date).isSameOrBefore('2021-07-30') && moment(date).isSameOrAfter('2021-07-20')) || (moment(date).isSameOrBefore('2021-08-05') && moment(date).isSameOrAfter('2021-08-02')) || .....

        });

    }

I want to create this line

return (moment(date).isSameOrBefore('2021-07-30') && moment(date).isSameOrAfter('2021-07-20')) || (moment(date).isSameOrBefore('2021-08-05') && moment(date).isSameOrAfter('2021-08-02')) || .....

Answer 1

You can use Array.some()

 const values = [{from: 2, to: 8}, {from: 11, to:20}]; console.log(values.some(x => x.to > x.from));

EDIT Base on new spec. Using moment.isBetween

 const time = [{ from: '2021-07-30', to: '2021-07-20' }, { from: '2021-07-05', to: '2021-07-02' }]; const disableDates = (testDate) => time.some(x => moment(testDate).isBetween(x.to, x.from, undefined, '[]')); console.log(disableDates('2021-07-25')); console.log(disableDates('2021-07-02')); console.log(disableDates('2020-01-01'));

 <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

Answer 2

function f() {
    // some instructions

    for (let v of values) {
        if (v.from < v.to) {
            return true
        }
    }
    return false
}

Answer 3

 const values = [{ from: 2, to: 8 }, { from: 11, to: 20 }] var isOk = false; values.forEach(v => isOk = isOk || (v.from < v.to)) console.log(isOk)