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Multiple variables assigned to one variable in Javascript?


Multiple variables assigned to one variable in Javascript?

By : Louis Ostrander
Date : November 15 2020, 06:54 AM
it helps some times I'd like to know what kind of syntax the line below is called.
code :
var that = {}, first, last;
var that = {};
var first;
var last;
var that = {}, first, last = that;
console.log(that, first, last);
{} undefined {}
var that = last, first, last = 1;
console.log(that, first, last);
undefined undefined 1


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JavaScript console prints assigned value of variable before it has been assigned?

JavaScript console prints assigned value of variable before it has been assigned?


By : Rick Muenyong
Date : March 29 2020, 07:55 AM
hope this fix your issue Try debugging your issue in the Chrome script debugger. Put a breakpoint on the line:
code :
for (var i = 0; i < initial_array.length; i++) {
When user changes variable during execution, not ALL variables/functions with that variable assigned change to the new v

When user changes variable during execution, not ALL variables/functions with that variable assigned change to the new v


By : Thanos Kalegias
Date : March 29 2020, 07:55 AM
around this issue Firstly, from import * can cause a lot of problems. For example, both turtle and math have functions called degrees defined in them. I had a bug when writing the code below where Python was trying to use turtle.degrees instead of math.degrees. It is much better not to use * & use the module name when calling a function e.g. a = math.sin(math.pi/2). It helps you (and Python!) to know where every object is from, because math.degrees(foo) and turtle.degrees(foo) are obviously different. You can also import only the things you know you'll need with for example from turtle import forward, left, penup
On to your question. This is one of the dangers of using global variables so liberally. With your current method you have to alter letter_width and letter_height globally but the variables calculated from them are another story. What I would do is have each drawing function take width and height arguments and do the maths in the function scope. Something like
code :
def draw_R(width, height):
    # This function will draw an R
    slant_height = math.sqrt(width**2 + (height/2)**2)
    slant_angle = math.degrees(math.acos(letter_width/slant_height))

    turtle.left(90)
    turtle.forward(height)
    turtle.right(90)
    turtle.forward(width)
    turtle.right(90)
    turtle.forward(height/2)
    turtle.right(90)
    turtle.forward(width)
    turtle.left(90+slant_angle)
    turtle.forward(slant_height)
    turtle.left(slant_angle)
    draw_space()
onkey(lambda: draw_R(letter_width, letter_height), "r")
def NewLetterDimensions():
    global letter_height
    letter_height = (numinput("New Letter Height", "Please set the new letter height: ", minval = 10, maxval = 170))

    global letter_width
    letter_width = (numinput("New Letter Width", "Please set the new letter width: ", minval = 10, maxval = 170))

    penup()
    goto(xcor(), ycor() +letter_height)
    pendown()
    listen()
Javascript - How to put variables inside a string that's assigned to a variable?

Javascript - How to put variables inside a string that's assigned to a variable?


By : Schaden
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Your question is highly unclear.
I personally believe that you should use one of the many packages you can find to add i18n to your app (for example, I see you're using props, so in react you could use https://github.com/i18next/react-i18next)
code :
define({
  validation: {
    FIX_ERRORS: "Please fix the errors.",
    SPECIAL_CHARACTERS_NOT_PERMITTED: "Special Characters not permitted.",
    WHITESPACE_NOT_PERMITTED: "Special Characters not allowed.",
    REQUIRED_FIELD: "This field is required.",
    INPUT_MUST_BE_BETWEEN: (min, max) => `Input must be between ${min} and ${max}.`,
    NOT_A_VALID_URL: "Not a valid URL"
  }
}
Better way to declare multiple variables assigned to a function in Javascript

Better way to declare multiple variables assigned to a function in Javascript


By : Zhu
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Change the getProps function to return an array based on the flags passed to it:
code :
const getProps = (data, featureFlag) => 
  featureFlag.map(ff => get(data,`dataForServer.global.featureFlags.${ff}`) || false);
const [nav, header, footer] = getProps(data, ['nav','header', 'footer']);
Does Ruby treat variables assigned an array differently than variables assigned a string?

Does Ruby treat variables assigned an array differently than variables assigned a string?


By : Q. ryalb
Date : March 29 2020, 07:55 AM
seems to work fine This is has to deal with what we call mutability/immutability and object references in programming languages. A few searches with "Ruby" and "immutability", "references" would bring a few good results but basically
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