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Repo info
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    Chase
    @DeviaVir
    Hey @kolodny, are you purposely not saying anywhere that people are not allowed to use npm packages to solve the problems (aka, are they allowed)?
    Moshe Kolodny
    @kolodny
    @deviaVir It kinda takes away from the challenge of it. I imagine things like flatten-promise would be really easy with https://www.npmjs.com/package/thunk-to-promise
    Dan Revah
    @danrevah
    @kolodny Hey,I've just added a pull request with a simple test for the curry exercise. if it's hard to understand what I was trying to explain update me so I could send the solution to show you what I meant.
    Moshe Kolodny
    @kolodny
    @danrevah I already merged it in, thanks
    Dan Revah
    @danrevah
    @kolodny I'm currently working on a php version, mostly new exercises but I hope you don't mind that i'll take few exercises from here also. :)
    Moshe Kolodny
    @kolodny
    sounds great! keep me updated on it's progress
    Shilpa
    @shilpa11
    Hi Kolodny , I was trying out your exercises which by the way are great. But some how my tests are failing. I don't know where i am going wrong.

    I have made a index.js file . And here is my code for that: function binarySearch (arr, value) {
    var startIndex = 0;
    var lastIndex = arr.length-1;
    var middle = Math.floor((startIndex + lastIndex)/2);

    while (arr[middle] != value && startIndex <= lastIndex) {
    if (arr[middle] > value) {
    lastIndex = middle - 1;
    } else if (arr[middle] < value) {
    startIndex = middle + 1;
    }
    middle = Math.floor((startIndex + lastIndex)/2);
    }
    return (arr[middle] != value ? -1 : middle);
    }

    Please let me know the steps to run this. I am running npm test command but all the tests are failing
    Moshe Kolodny
    @kolodny
    @shilpa11 what happens when you try running it?
    Shilpa
    @shilpa11
    Thanks for the reply. It was my bad. I didn't export the module at the top. It's working fine now. Earlier all the test cases were failing
    Sid Syrus
    @SidSyrus
    I am trying to get solution for one of the challenge but having issues while running it through flip.js. Would you mind explaining how to do it?
    Moshe Kolodny
    @kolodny
    @SidSyrus sure thing, you need to do something like this:
    git checkout solutions
    node flip.js once/index.js
    cat once/index.js
    cd once
    npm test
    Sid Syrus
    @SidSyrus
    @kolodny Thank you, appreciate it.
    rainrunner88
    @rainrunner88
    thank you for posting helpful challenges
    im a web development student at general assembly ny and they are really helpful
    Ben Wallach
    @benw91

    Hi, I know that this is relatively old, but thanks for the helpful challenges!
    I'm trying to solve the "flatten" challenge and I don't understand what I'm doing wrong. I checked my code in playcode.io and in jsbin and I get the expected [1,2,3,4,5] array, but the test you wrote says it gets [1,2,3,4]. This is my code:

    function unpack(arr) {
        if(!hasInternalArr(arr)) return arr;
        var popped = arr.pop();
        if(hasInternalArr(popped)) {
            return arr.concat(unpack(popped));
        }
        else {
            return arr.concat(popped)
        }
    }
    
    function hasInternalArr(arr) {
        if(!Array.isArray(arr)) return false;
      return arr.some(function(curr) {
        return Array.isArray(curr);
      });
    }
    function flatten(arr) {
        var toRet = [];
        arr.map(function(curr) {
            var unpacked = unpack(curr)
            toRet = toRet.concat(unpacked);
        });
        return toRet;
    }

    Thanks!