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when i work in javascript canvas, when i created a basic object for aqngles like thius
const Angle =
{
Beginning:0*Math.PI,
OneQuarter:0.5*Math.PI,
TwoQuarter:1.0*Math.PI,
End:2*Math.Pi
}
and when i console log the outputs i get this:
0
NaN
but at the same time when i create unique consts for each like so:
const
startAngle = 0*Math.PI,
endAngle = 2*Math.PI;
and i console log it i get the response i want:
0
6.283185307179586
why does this happen? and how can i create a simple object with calculation and get a correct response? Thanks
Repl page:
https://repl.it/#Ballatoilet/EMDR
You have typo, it should be End:2*Math.PI and you have End:2*Math.Pi (small "i" letter).
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i want to replace all the "_" occurrences from an array like this (TASK_1,TASK_2,TASK_3).
I receive this from the back-end and i cannot use the replace all because the project doesn't support es2021. I need to display the array like this (TASK 1,TASK 2, TASK 3).
I tried this method:
formatWithoutUnderScore(valueToFormat:any) {
return valueToFormat.map((value:any) => value.replace(/_/g, ' '));
}
and the used it:
this.formatWithoutUnderScore(this.totalTasks);
But it does nothing :(
Can someone help?
this.totalTasks = this.formatWithoutUnderScore(this.totalTasks);
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Hi im pretty sure what im about to post might not be enough info (if so please let me know what more is needed). I am using node js and having a really weird error. Below is the code and output.
if (currentPrice > variableData[i].stopLossHard) {
console.log('if')
console.log(currentPrice)
console.log('is more than')
console.log(variableData[i].stoplossHard)
}
Output:
if
92.7
is more than
93.62700000000001
This is consistently happening. I also made sure that both currentPrice and variableData[i].stopLossHard are numbers and not strings (I made sure in the code and in the output its the color of a number not a string)
Any ideas is highly appreciated.
The attribute you print is different than the one you check in the if statement:
(In the if stopLossHard has a capital L, stop-L-ossHard, what you print doesn't)
Try this:
if (currentPrice > variableData[i].stoplossHard) {
console.log('if')
console.log(currentPrice)
console.log('is more than')
console.log(variableData[i].stoplossHard)
}
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Below is my code, for some reason it outputs undefined for ['6'] & ['7'], all the other ones work. I don't understand what is going wrong.
var array = [
['1'],
['2'],
['3'],
['4'],
['5'],
['6']
['7'],
['8'],
['9'],
['10']
];
if(document.getElementById("random-element")) {
var rand = array[Math.floor(Math.random() * array.length)];
document.getElementById('random-element').innerHTML = rand;
}
https://jsfiddle.net/ggky7a03/
You missed a comma in your array, which will explain why those 2 values are not returning (they don't exist)
Side note, array is a reserved word in JS, so you can't (shouldn't) use it for your variable name, so change it to
var myAwesomeArray = [
// or similar
Here's your fixed code
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I'm creating a site and i needed to do some js. I'm not that good with it but tought i would figer it out. Not. I created a for loop but it does not run.
function order(user,product){
var index;
for(var i = 0; i<users.lenght; i++){
if(user == users[i]){
index = i;
break;
}
}
var budget = budgets[index];
alert(budget);
}
the creation of the users and budgets arrays are done with php and after checking with alert() it was how it should be.
Can anyone help me please?
lenght is spelt length. The misspelt property does not exist, so it undefined, which is equivalent to 0.
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I have an javascript array of objects as follows :
list = [
{
"employee_work_rights_id":74,
"amazon_id":173,
"employee_id":3,
"work_rights":"australian_citizen",
"document_type":"password",
"display_name":"a.pdf",
"filename":"abc.pdf",
"s3bucket":"xyz",
"filepath":"employer27\/employee3\/"
},
{
"employee_work_rights_id":75,
"amazon_id":175,
"employee_id":3,
"work_rights":"australian_citizen",
"document_type":"password",
"display_name":"a.pdf",
"filename":"xyz.pdf",
"s3bucket":"zyx",
"filepath":"employer27\/employee3\/"
}
]
I tried to access amazon_id as follows :
console.log(list[0].amazon_id);
This is giving me undefined. How can I access this ?
You're doing the right thing. The way you initialize list is correct, and so is the way you access the property.
Assuming you were trying interactively in the console, the undefined you see is not the value of list[0].amazon_id. It's the return value of console.log. In Javascript, everything has a return value. However, in the console, just above or just below your undefined, you should see amazon_id's proper value.