Javascript calculations returning wrong numbers [closed] - javascript

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So I'm trying to make two input fields calculate their value off one another. Here is my code so far:
function strToNumber (str) {
return Number(str.replace(/\D/g,''));
}
var number_2_calc;
var number_1 = strToNumber($("#number_1").val());
var number_2 = strToNumber($("#number_2").val());
$("#number_2").focusout(function(){
if(number_2 == 0) {
$("#number_2").val("");
} else {
number_2_calc = number_2 +(number_1 * 0.1);
$("#number_2").val(number_2_calc);
}
});
$("#number_1").focusout(function() {
if(number_2 == 0) {
$("#number_2").val("");
} else {
//not sure if necessary to create seperate vars here
var number_2_stored = strToNumber($("#number_1").val());
var number_1_stored =strToNumber($("#number_2").val());
number_2_calc = 0;
number_2_calc = number_2_stored +(number_1_stored * 0.1);
Math.round(number_2_calc).toFixed(2);
$("#number_2").val(number_2_calc);
}
});
So I'm trying to make it when you fill out either field then focus out it will change the input accordingly. This works fine when number_2 focuses out, but when you go back and change number_1 the values get messy. Probably just overlooking something simple, because this shouldn't be that difficult.

When you round the result, you need to assign back to "number_2_calc".
number_2_calc = Math.round(number_2_calc).toFixed(2);

Related

How I can Create many answer [closed]

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hello i'm work for question system i want to add many answers in a one question in a one value
html
<input id="an" placeholder="test" type="text"/><a id="wo" style="display:none;">done test</a><button id="bt">Submit</button>
javascript
const an = document.getElementById("an");
const bt = document.getElementById("bt");
bt.addEventListener("click", () => {
if (an.value.toLowerCase() === "test") { // I want create many value in here.
bt.style.display = "none";
an.style.display = "none";
document.getElementById("wo").style.display = "initial";
} else {
bt.innerText = "Wrong!"
bt.style.background = "red";
}
});
I hope this answer is what you are looking for:
You can make an array with your answers, and then check to see if the given answer is inside the array.
const array = ['test', 'test2', 'test3'];
if (array.includes(an.value.toLowerCase() ) )
...
Something else, you are missing a semicolon in your else { ... }.
bt.innerText = "Wrong!";

Why do elements from html to js file go as objects [closed]

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var toplama_islemi = (document.getElementById("toplama_islemi").style.display ="none");
var cıkarma_islemi = (document.getElementById("cıkarma_islemi").style.display ="none");
var carpma_islemi = (document.getElementById("carpma_islemi").style.display ="none");
var bolme_islemi = (document.getElementById("bolme_islemi").style.display ="none");
And why are there two equal signs here?
Those aren't comparisons. They're assignments. The styles are applied to the elements, and then the elements' style property values are assigned to variables.
Here's a demonstration.
setTimeout(function() {
var toplama_islemi = (document.getElementById("toplama_islemi").style.display = "none");
var cıkarma_islemi = (document.getElementById("cıkarma_islemi").style.display = "none");
var carpma_islemi = (document.getElementById("carpma_islemi").style.display = "none");
var bolme_islemi = (document.getElementById("bolme_islemi").style.display = "none");
console.log({toplama_islemi, cıkarma_islemi, carpma_islemi, bolme_islemi});
}, 2000);
<p>Wait for it...</p>
<div id="toplama_islemi">toplama_islemi</div>
<div id="cıkarma_islemi">cıkarma_islemi</div>
<div id="carpma_islemi">carpma_islemi</div>
<div id="bolme_islemi">bolme_islemi</div>
Everything is an object in JavaScript (except primitive values). If you don't want the style property values returned, do the steps separately:
var toplama_islemi = document.getElementById("toplama_islemi");
toplama.style.display = "none";
Now the element is assigned to the variable instead.

How to take users input, modify it, then display it in JQuery? [closed]

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This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 6 years ago.
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I am trying to make a unit converter, I will have the user enter a numeric value in a text box, select a unit type(lbs, g, oz etc...) from a select element, then do some simple multiplication to get the conversion, then finally, the part I am having trouble with, display the conversion result in a designated area. I can not get the text to change to the conversion result. I only have one conversion coded so far and that is pounds to grams, because I want to be able to display the text before I code the rest of them. Thank you and any input helps!
var main = function() {
var rslt = $('#result').val;
var num = $('#nmbr').val();
var inpt = $('#slct1').val();
var outpt = $('#slct2').val();
var bttn = $('.sbs');
$('.sbs').click(function(){
if(inpt == 'pounds'){
if(outpt == 'grams') {
var pGrams = num * 453.592;
$('#result').text(pGrams);
}
}
})
}
$(document).ready(main);
full code: https://jsfiddle.net/drzb6frk/
Try this javascript code:
var main = function() {
var bttn = $('.sbs');
$('.sbs').click(function(){
var rslt = $('#result').val;
var num = $('#nmbr').val();
var inpt = $('#slct1').val();
var outpt = $('#slct2').val();
if(inpt == 'pounds'){
if(outpt == 'grams') {
var pGrams = num * 453.592;
$('#result').text(pGrams);
}
}
})
}
$(document).ready(main);

List all stripe charges in Nodejs [closed]

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Closed 6 years ago.
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We are migrating from Ruby to NodeJS and we essentially wanted a function like this in Node:
starting_after = nil
charges = []
while true
results = Stripe::Charge.all(limit: 100, starting_after: starting_after)
break if results.data.length == 0
charges = charges + results.data
starting_after = results.data.last.id
end
How should one go about implementing this in NodeJS?
var stripe = require("stripe")(
"sk_test_xxx"
);
function paginateCharges(last_id) {
// Define request parameters
var req_params = { limit: 3 };
if (last_id !== null) { req_params['starting_after'] = last_id; }
// Get events
stripe.charges.list(
req_params,
function(err, charges) {
// Do something with the returned values
for (i = 0; i < charges.data.length; i++){
console.log(charges.data[i].id);
}
// Check for more
if (charges.has_more) {
paginateCharges(charges["data"][charges["data"].length - 1].id);
}
}
)
}
paginateCharges(null);

Is it possible to have a Javascript variable to have two or more functions inside? [closed]

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Closed 8 years ago.
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I have the following Javascript code:
var Lab = {
minseat: function(){
var seat = 10;
return seat;
}
maxseat: function(){
var seat = 50;
return seat;
}
}
So, when I need to get the value, I simply call the following code:
console.log(" Min Seat: " + Lab.minseat());
console.log(" Max Seat: " + Lab.maxseat());
However, it seems it is not working. So, may I know if it is possible to have a Javascript variable to have two or more functions inside?
You forgot a comma after the first function:
var Lab = {
minseat: function(){
var seat = 10;
return seat;
},
maxseat: function(){
var seat = 50;
return seat;
}
}
How about a comma separating the keys in your object definition.
var Lab = {
minseat: function(){
var seat = 10;
return seat;
},
maxseat: function(){
var seat = 50;
return seat;
}
}
http://jsfiddle.net/V4Yje/

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