js 数值包含

function isFactor(a, b) {
    if (b === 0) return false; // 避免除以0的情况
    return a % b === 0;
}

console.log(isFactor(10, 2)); // true, 因为10可以被2整除
console.log(isFactor(10, 3)); // false, 因为10不能被3整除

function containsDigits(number, digitsToCheck) {
    const numberStr = number.toString();
    const digitsStr = digitsToCheck.toString();
    return numberStr.includes(digitsStr);
}

console.log(containsDigits(12345, 23)); // true, 因为12345包含23
console.log(containsDigits(12345, 67)); // false, 因为12345不包含67

function containsDigitsSafe(number, digitsToCheck) {
    if (digitsToCheck > number) return false;
    return containsDigits(number, digitsToCheck);
}

console.log(containsDigitsSafe(123, 234)); // false

function containsSequence(number, sequence) {
    const numberStr = number.toString();
    const sequenceStr = sequence.toString();
    const regex = new RegExp(sequenceStr);
    return regex.test(numberStr);
}

console.log(containsSequence(123456, 345)); // true
console.log(containsSequence(123456, 457)); // false