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Functions containing bash variables inserted into perl strings through variables passed through the intiiation of a func

By : Besere
Date : July 31 2020, 03:00 AM
I wish this help you That's really the wrong approach; you're piling a bunch of hacks together that all "leak" through to different layers. (For example, consider recolor 'x//g;#' greenh, which is intended to take occurrences of x//g;# and color them green, but which actually takes occurrences of x and deletes them; or recolor foo blueh, which is intended to take occurrences of foo and color them blue, but which actually doesn't work because your function secretly depends on a global variable being set and the user didn't define $blueh.)
I think you're better off just defining individual functions:
code :
greenh()  { pat="$1" perl -pe 's/$ENV{pat}/\e[2;30;42m$&\e[0m/g' ; }
yellowh() { pat="$1" perl -pe 's/$ENV{pat}/\e[2;30;43m$&\e[0m/g' ; }
aquah()   { pat="$1" perl -pe 's/$ENV{pat}/\e[2;30;46m$&\e[0m/g' ; }
recolor() {
  perl -e '
    my $prefix =
        "greenh"  => "\e[2;30;42m",
        "yellowh" => "\e[2;30;43m",
        "aquah"   => "\e[2;30;46m",
    die "Unrecognized color $color" unless $prefix;
    while (<>) {
  ' -s -- -pat="$1" -color="$2"

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How to bind @variables in inserted functions in coffiescript?

By : Dwight Modiwirijo
Date : March 29 2020, 07:55 AM
I wish this helpful for you Assuming you want @options to be the @options from the FileTree constructor, you need to use the fat-arrow on the click handler too:
code :
class FileTree
  constructor: (@root_elem, @options, @handler) ->

  _bind_tree: (t) ->
    $(t).find('li a').bind('click', =>
      func1 = (elem) =>
        if @options.some_option
FileTree.prototype._bind_tree = function(t) {
  var _this = this; // will refer to the instance of FileTree
  return $(t).find('li a').bind('click', function() {
    var func1;
    return func1 = function(elem) {
      if (_this.options.some_option) {
        return doStuff();

Why variables and methods are passed as strings in objective-c?

By : Manisha Singhal
Date : March 29 2020, 07:55 AM
this one helps. That is a key path. It isn't necessarily a variable name; instead, it's a list of properties. In this case the list only has one item, but in other cases it might be something like @"account.balance.inDollars", where each element in the chain has its property looked up by name.
As for why you don't just write, say, account.balance.inDollars — well, think about what that would do if you substituted it there. It would access the property when you set up the observer and pass the current value of the property. That isn't what we want. Instead, we want to tell the observation mechanism how to look up the property itself so it can watch for changes, and it does that with key-value coding. (This also allows you to set up bindings graphically in Interface Builder.)

Bash variable variables passed through functions

By : dnetboy
Date : March 29 2020, 07:55 AM
it helps some times I've looked over a couple other variable variable posts here but still seem stuck with what I'm trying to attempt. , ZTest is already available as a parameter expansion operator:
code :
: ${var1:?Cannot find required var1}
VarLookup () {
  local var=$1
  local key=$2
  declare -g "${var}=$(REQUIRED_ENV_VAR=/path/to/somewhere mybinary -p "$key")"
printf -v "$var" '%s' "$(REQUIRED_ENV_VAR=/path/to/somewhere mybinary -p "$key")"
var_lookup () {
    REQUIRED_ENV_VAR=/path/to/somewhere mybinary -p "${1}_$set_name"

var1=$(var_lookup key1); : ${var1:?Cannot find required var1}
var2=$(var_lookup key2); : ${var2:?Cannot find required var2}
var3=$(var_lookup key3)
var4=$(var_lookup key4)

Getting the return value of functions passed in as variables

By : Ashis Kumar
Date : March 29 2020, 07:55 AM
it helps some times If you want to see if they are logically equivalent using the same arguments:
code :
def logical_equiv(function1, function2, *args):
    return function1(*args) == function2(*args)
>>> func1 = lambda P, Q: (not P) or (not Q)
>>> func2 = lambda P, Q: not(P and Q)
>>> logical_equiv(func1, func2, True, False)
>>> func1 = lambda P, Q, R: (not P) or (not Q) or (not R)
>>> func2 = lambda P, Q, R: not(P and Q and R)
>>> logical_equiv(func1, func2, True, False, True)
from itertools import product
def logical_equiv(f1, f2):
    n = f1.__code__.co_argcount        # @dopstart
    if n != f2.__code__.co_argcount:
        return False
    return all(f1(*args) == f2(*args) for args in product([True, False], repeat=n))

>>> func1 = lambda P, Q, R: (not P) or (not Q) or (not R)
>>> func2 = lambda P, Q, R: not(P and Q and R)
>>> logical_equiv(func1, func2)

How to control variables passed through functions?

By : kalminator
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Indeed you should assign values of properties with = instead of assigning a new object.
If it is supported by your engine, you can use Object.assign() instead of =. It makes a shallow copy (not a deep copy), which works for you because your object is flat.
code :
const stats = {
    exp: 0,
    actions: 2,
    yield: 0
const skills = {
    tradeSkill: (amount, stats) => {
        if (stats.actions <= 0) {
            //Reset stats for Report
            Object.assign(stats, { // properties of 2nd object are copied into 1st object
                exp: 0,
                actions: amount,
                yield: 0
        return stats;
console.log(skills.tradeSkill(10, stats)); // { exp: 0, actions: 1, yield: 0 }
console.log(skills.tradeSkill(10, stats)); // { exp: 0, actions: 10, yield: 0 }
console.log(skills.tradeSkill(10, stats)); // { exp: 0, actions: 9, yield: 0 }
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