AJAX Validator

function ajaxValidator(input){
    let hash = input.pop().split('');
    let input1Reg = /^Method: (PUT|GET|POST|DELETE)$/g;
    let input2Reg = /^Credentials: (Bearer|Basic) ([A-Za-z0-9]+)$/g;
    let input3Reg = /^Content: ([a-zA-Z0-9.]+)$/g;
    let credentialRegex = /^(Bearer|Basic) ([A-Za-z0-9]+)$/g;
    let contentRegex = /^([a-zA-Z0-9.]+)$/g;
    let decoded = false;
    for (let i = 0; i < input.length-1; i+=3) {
        if(!input[i].match(input1Reg)){console.log(`Response-Code:400`);continue;}
        if(!input[i+1].match(input2Reg)){console.log(`Response-Code:400`);continue;}
        if(!input[i+2].match(input3Reg)){console.log(`Response-Code:400`);continue;}
        let [empty1,method] = input[i].split(': ');
        let [empty2,credentials] = input[i+1].split(': ');
        let [empty3,content] = input[i+2].split(': ');
        if(method != 'GET' && method != 'POST' && method != 'PUT' && method != 'DELETE'){console.log(`Response-Code:400`);continue;}
        if(!credentials.match(credentialRegex)){console.log(`Response-Code:400`); continue;}
        if(!content.match(contentRegex)){console.log(`Response-Code:400`); continue;}
        credentials = credentials.split(' ');
        if(method != 'GET' && credentials[0] == 'Basic'){console.log(`Response-Method:${method}&Code:401`);continue;}
        for (let j = 0; j < hash.length; j+=2) {
             let numberOfOcc = Number(hash[j]);
             let letter = hash[j+1];
             let letterReg = new RegExp(letter,'g');
             let match = credentials[1].match(letterReg);
             if(match != null && match.length >= numberOfOcc) {decoded = true;break;}
        }
        if(decoded === false){console.log(`Response–Method:${method}&Code:403`);continue;}
        console.log(`Response-Method:${method}&Code:200&Header:${credentials[1]}`);
    }
}