agentbond007

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

agentbond007

 1 contract TokenContractFragment {
 2  
 3     // Balances for each account
 4     mapping(address => uint256) balances;
 5  
 6     // Owner of account approves the transfer of an amount to another account
 7     mapping(address => mapping (address => uint256)) allowed;
 8  
 9     // What is the balance of a particular account?
10     function balanceOf(address _owner) constant returns (uint256 balance) {

agentbond007

function throttle( fn, time ) {
    var t = 0;
    return function() {
        var args = arguments, ctx = this;
        clearTimeout(t);

        t = setTimeout( function() {
            fn.apply( ctx, args );
        }, time );
    };

agentbond007

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

agentbond007

 "Ec2Instance" : {
      "Type" : "AWS::EC2::Instance", 
      "Properties" : {
        "ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" }, "PV64" ]},
        "KeyName" : { "Ref" : "KeyName" },
        "InstanceType" : "m1.small",
        "SecurityGroups" : [{ "Ref" : "Ec2SecurityGroup" }],
        "BlockDeviceMappings" : [
          {
            "DeviceName"  : "/dev/sdc",

agentbond007

Verifying that "bmorris.id" is my Blockstack ID. https://onename.com/bmorris

agentbond007

Keybase proof

I hereby claim:

• I am agentbond007 on github.
• I am agentbond007 (https://keybase.io/agentbond007) on keybase.
• I have a public key ASDzXG8lFgquDRpM85Gc0M3ctRx_YP5wlHGMePhXHmHRrgo

To claim this, I am signing this object:

agentbond007

sudo su -
mkdir -p /opt/bin
curl -L https://github.com/docker/compose/releases/download/1.5.1/docker-compose-`uname -s`-`uname -m` > /opt/bin/docker-compose
chmod +x /opt/bin/docker-compose

agentbond007

Verifying that +agentbond007 is my blockchain ID. https://onename.com/agentbond007