This question already has answers here:
HTTP GET request in JavaScript?
(31 answers)
Read a file in Node.js
(8 answers)
Closed 3 years ago.
I need to read the numeric value of one line in a text file
color=7
so var color will = 7
Split the string by '=', get the second value and turn it into an int:
let data = 'color=7';
let color = parseInt(data.split('=')[1]);
console.log(color);
Do note that if the value after the = isn't a number in this case, the code will throw an excpetion so you might wanna catch it.
Related
This question already has answers here:
Parse JSON in JavaScript? [duplicate]
(16 answers)
Closed 3 years ago.
I need convert from data = "[[0,1], [1,1]]" to data = [[0,1], [1,1]] in javascript, remove double quotes . It's possible?
Thanks
Just use the JSON object:
data = JSON.parse("[[0,1], [1,1]]"); // data === [[0,1], [1,1]]
This question already has answers here:
What is JavaScript's highest integer value that a number can go to without losing precision?
(21 answers)
Is there any limitation for integer in javascript? [duplicate]
(2 answers)
Closed 6 years ago.
This is my post id:
var postId = 47213486358396931;
var postComments = "Comment";
adding in object like this
var param = {
"PostId" : postId,
"postComment":postComments
}
If I print the param I get like this. The last digit of number changed to 0. Why am getting like this.
{"PostId" : 47213486358396930, "postComment": "Comment"}
This question already has answers here:
How can I get query string values in JavaScript?
(73 answers)
Closed 7 years ago.
I want to pass one value through ajax by taking the values from jQuery. But I am using link so I have problems taking the value. I tried the following,
<a id="addpa" class="ActionPopup" href="http://localhost:49951/admin/assignhome/Add?sPId=7">Add</a>
Jquery Code:
var spId = $("#addpa").prop("href"); // Here i am getting a whole Url
var thequerystring = getParameterByName("sPId");
The result is showing undefined. How to take the value of sPId? Give me ideas..
How to take the value of sPId?
Try using String.prototype.split() , Array.prototype.pop()
var spId = $("#addpa").prop("href").split(/=/).pop();
This question already has answers here:
Parse JSON in JavaScript? [duplicate]
(16 answers)
Closed 7 years ago.
I want to turn this into an array
"["65747add-afd2-45b5-92e0-150bbe40e6d9", "9c247ea5-6b81-4f47-a50c-42367dedd50b", "c1555363-aca9-4e04-8844-e0180397c72e"]"
I am getting it from the page like this:
$('#layout-uuids').text()
Is there away to just get it as an array or do I need to turn the string into an array somehow?
Thanks!
That string looks like JSON. If it is indeed JSON, all you need is JSON.parse():
var someArray = JSON.parse($('#layout-uuids').text());
This question already has answers here:
Swap value of two properties on object(s)
(3 answers)
Closed 8 years ago.
I have the following JSON. I need to swap SortId
Like I have this,
[{"CategoryId":1,"Name":"Worktable","SortId":1}
,{"CategoryId":2,"Name":"Bf ","SortId":2}]
After swaping their 'SortId' I need
[{"CategoryId":1,"Name":"Worktable","SortId":2}
,{"CategoryId":2,"Name":"Bf ","SortId":1}]
Please tell me how to do it through JavaScript.
var tmp = a[0].SortId;
a[0].SortId = a[1].SortId;
a[1].SortId = tmp;
jsFiddle