Snippets:

  • Prettify

    // Reference: https://www.totaltypescript.com/concepts/the-prettify-helper

    type Prettify<T> = {
    [K in keyof T]: T[K];
    } & {}
    // Reference: https://www.totaltypescript.com/concepts/the-prettify-helper

    type Prettify<T> = {
    [K in keyof T]: T[K];
    } & {}
  • Alea

    // Reference: https://www.npmjs.com/package/alea
    // From http://baagoe.com/en/RandomMusings/javascript/

    // importState to sync generator states
    Alea.importState = function(i){
    var random = new Alea();
    random.importState(i);
    return random;
    };

    function Alea() {
    return function(...args) {
    // Johannes Baagรธe <baagoe@baagoe.com>, 2010
    var s0 = 0;
    var s1 = 0;
    var s2 = 0;
    var c = 1;

    if (args.length == 0) {
    args = [+new Date];
    }
    var mash = Mash();
    s0 = mash(' ');
    s1 = mash(' ');
    s2 = mash(' ');

    for (var i = 0; i < args.length; i++) {
    s0 -= mash(args[i]);
    if (s0 < 0) {
    s0 += 1;
    }
    s1 -= mash(args[i]);
    if (s1 < 0) {
    s1 += 1;
    }
    s2 -= mash(args[i]);
    if (s2 < 0) {
    s2 += 1;
    }
    }
    mash = null;

    var random = function() {
    var t = 2091639 * s0 + c * 2.3283064365386963e-10; // 2^-32
    s0 = s1;
    s1 = s2;
    return s2 = t - (c = t | 0);
    };
    random.next = random;
    random.uint32 = function() {
    return random() * 0x100000000; // 2^32
    };
    random.fract53 = function() {
    return random() +
    (random() * 0x200000 | 0) * 1.1102230246251565e-16; // 2^-53
    };
    random.version = 'Alea 0.9';
    random.args = args;

    // my own additions to sync state between two generators
    random.exportState = function(){
    return [s0, s1, s2, c];
    };
    random.importState = function(i){
    s0 = +i[0] || 0;
    s1 = +i[1] || 0;
    s2 = +i[2] || 0;
    c = +i[3] || 0;
    };

    return random;

    };
    }

    function Mash() {
    var n = 0xefc8249d;

    var mash = function(data) {
    data = data.toString();
    for (var i = 0; i < data.length; i++) {
    n += data.charCodeAt(i);
    var h = 0.02519603282416938 * n;
    n = h >>> 0;
    h -= n;
    h *= n;
    n = h >>> 0;
    h -= n;
    n += h * 0x100000000; // 2^32
    }
    return (n >>> 0) * 2.3283064365386963e-10; // 2^-32
    };

    mash.version = 'Mash 0.9';
    return mash;
    }

    export default Alea
    // Reference: https://www.npmjs.com/package/alea
    // From http://baagoe.com/en/RandomMusings/javascript/

    // importState to sync generator states
    Alea.importState = function(i){
    var random = new Alea();
    random.importState(i);
    return random;
    };

    function Alea() {
    return function(...args) {
    // Johannes Baagรธe <baagoe@baagoe.com>, 2010
    var s0 = 0;
    var s1 = 0;
    var s2 = 0;
    var c = 1;

    if (args.length == 0) {
    args = [+new Date];
    }
    var mash = Mash();
    s0 = mash(' ');
    s1 = mash(' ');
    s2 = mash(' ');

    for (var i = 0; i < args.length; i++) {
    s0 -= mash(args[i]);
    if (s0 < 0) {
    s0 += 1;
    }
    s1 -= mash(args[i]);
    if (s1 < 0) {
    s1 += 1;
    }
    s2 -= mash(args[i]);
    if (s2 < 0) {
    s2 += 1;
    }
    }
    mash = null;

    var random = function() {
    var t = 2091639 * s0 + c * 2.3283064365386963e-10; // 2^-32
    s0 = s1;
    s1 = s2;
    return s2 = t - (c = t | 0);
    };
    random.next = random;
    random.uint32 = function() {
    return random() * 0x100000000; // 2^32
    };
    random.fract53 = function() {
    return random() +
    (random() * 0x200000 | 0) * 1.1102230246251565e-16; // 2^-53
    };
    random.version = 'Alea 0.9';
    random.args = args;

    // my own additions to sync state between two generators
    random.exportState = function(){
    return [s0, s1, s2, c];
    };
    random.importState = function(i){
    s0 = +i[0] || 0;
    s1 = +i[1] || 0;
    s2 = +i[2] || 0;
    c = +i[3] || 0;
    };

    return random;

    };
    }

    function Mash() {
    var n = 0xefc8249d;

    var mash = function(data) {
    data = data.toString();
    for (var i = 0; i < data.length; i++) {
    n += data.charCodeAt(i);
    var h = 0.02519603282416938 * n;
    n = h >>> 0;
    h -= n;
    h *= n;
    n = h >>> 0;
    h -= n;
    n += h * 0x100000000; // 2^32
    }
    return (n >>> 0) * 2.3283064365386963e-10; // 2^-32
    };

    mash.version = 'Mash 0.9';
    return mash;
    }

    export default Alea
  • yw

    # Bash script to execute a package.json script within a workspace
    yw() {
    yarn workspace $(yarn workspaces list --json | jq -r .name | fzf) "$@"
    }

    # For yarn v1 monorepos, I use ywold:
    ywold() {
    yarn workspace $(yarn --json workspaces info | jq '.data' -r | jq "[keys][0] []" -r | fzf) $@
    }
    # Bash script to execute a package.json script within a workspace
    yw() {
    yarn workspace $(yarn workspaces list --json | jq -r .name | fzf) "$@"
    }

    # For yarn v1 monorepos, I use ywold:
    ywold() {
    yarn workspace $(yarn --json workspaces info | jq '.data' -r | jq "[keys][0] []" -r | fzf) $@
    }
  • Turbo workspace timings

    If you work within a monorepo and want to get a breakdown of the time that each workspace takes to run a task (lib:build in the below example), then these three shell commands will do that!


    yarn turbo run lib:build --summarize
    SUMMARY_FILE=$(/bin/ls .turbo/runs/*.json | head -n1)
    cat $SUMMARY_FILE | jq '[.tasks[] | {"taskId": .taskId, "duration": (.execution.endTime - .execution.startTime)}] | sort_by(-.duration)

    yarn turbo run lib:build --summarize
    SUMMARY_FILE=$(/bin/ls .turbo/runs/*.json | head -n1)
    cat $SUMMARY_FILE | jq '[.tasks[] | {"taskId": .taskId, "duration": (.execution.endTime - .execution.startTime)}] | sort_by(-.duration)