I want to loop inside single quote I have nested loop in my code errors occurs when I try to loop inside the quote
var jsonObj = #json($data);
var borFld = Object.keys(jsonObj);
var all_fields;
var fields_remove = []
var table_id = #json($table_id);
var rows = [];
var htmls = [];
function getFields(){
var my_fields = [];
for(keys in jsonObj){
var item = jsonObj[keys];
var fields = Object.keys(item)
htmls +=
'<tr>'+
for(list in fields) {
var myfields = fields[list]
all_fields = item[myfields]
}
'</tr>'
}
// $('#tb_time_sheet tbody').html(htmls)
}
I guess you get the data as string of JSON object. You should first parse it so that JS can read it.
const parsedJsonObject = JSON.parse('{"name":"Test"}');
After that you can use it inside for loop. If it is not array of object and key value pair
You can get values by:
Object.values(parsedJsonObject);
You can get keys by:
Object.keys(parsedJsonObject);
Then, iterate over keys and get value by:
parsedJsonObject[key]
Related
There is a JSON file with an array like
{
"general_array":[
{"key_1":["a","b","c"]}
]
}
I want to add an element to the array e.g.
{"key_2":["d","e","f"]}
but the value of new key I get from a variable e.g.
var newKey = 'key_2';
I'm trying to add the element to the existed array as following
// ... getting file content
// var jsonFileContent = '{"general_array":[{"key_1":["a","b","c"]}]}';
var jsonObj = JSON.parse(jsonFileContent);
var newKey = 'key_2';
jsonObj.general_array.push({newKey:['d','e','f']});
var newJsonFileContent = JSON.stringify(jsonObj);
// and rewrite the file ...
// console.log(newJsonFileContent);
But in the file I get
{
"general_array":[
{"key_1":["a","b","c"]},
{"newKey":["d","e","f"]}
]
}
i.e. as the new element key I get the NAME of variable, but I need its VALUE
How to add the value?
UPDATED
The solution with [newKey] works in most of browsers, but it doesn't work in Internet Explorer 11
I need a solution to be working in IE11 too, so the question is still actual
You can use [newKey] to get the value of the variable as a key name:
var jsonFileContent = `
{
"general_array":[
{"key_1":["a","b","c"]}
]
}`;
var jsonObj = JSON.parse(jsonFileContent);
var newKey = 'key_2';
var tempObj = {};
tempObj[newKey] = ['d','e','f'];
jsonObj.general_array.push(tempObj);
var newJsonFileContent = JSON.stringify(jsonObj);
console.log(newJsonFileContent);
To use the value of a variable as a JSON key, enclose it in square brackets, like so:
{[newKey]:['d','e','f']}
let jsonFileContent = '{"general_array":[{"key_1":["a","b","c"]}]}';
let jsonObj = JSON.parse(jsonFileContent);
let newKey = 'key_2';
jsonObj.general_array.push({[newKey]:['d','e','f']});
let newJsonFileContent = JSON.stringify(jsonObj);
console.log(newJsonFileContent)
This is the computed property name syntax. It's a shorthand/syntax sugaring for someObject[someKey] = somevalue
Try changing this line:
jsonObj.general_array.push({newKey:['d','e','f']});
For this:
var newObj = {};
newObj[newKey] = ['d','e','f'];
jsonObj.general_array.push(newObj);
I have List of items data and empty array quotations :
var data = {};
var quotations = [];
I want to fill quotations with data values ,Every time i add new data it added successfully but all data values get last value .
for example :
$("#addquotation").click(function () {
debugger;
var itemname = $("#itemname").val();
var cost =parseFloat( $("#cost").val());
var notes = $("#notes").val();
var date = $("#date").val();
data.Item = itemname;
data.Cost = cost;
data.Notes = notes;
data.Date = date;
quotations.push(data);
)};
for first time i add
"test,45,testnotes,2016-02-03" Second time i 've added
"test2,45.2,testnotes2,2016-02-05"
when i debug i get data as :
obj(0): "test2,45.2,testnotes2,2016-02-05"
obj(1):"test2,45.2,testnotes2,2016-02-05"
it seems it append last version to all data
Please Advice . Thanks
You need to declare data inside the click handler, if it's declared as a global variable you are basically always modifying and adding the same data object to the array:
var quotations = [];
$("#addquotation").click(function () {
debugger;
var data = {};
var itemname = $("#itemname").val();
var cost =parseFloat( $("#cost").val());
var notes = $("#notes").val();
var date = $("#date").val();
data.Item = itemname;
data.Cost = cost;
data.Notes = notes;
data.Date = date;
quotations.push(data);
)};
You are pushing the same object reference each time since you declared data outside of the click handler.
Change from :
var data={};
$("#addquotation").click(function () {
To
$("#addquotation").click(function () {
var data={};// declare local variable
The problem is that data is a global variable and you add a reference to data to quotations.
When the first value is pushed to quotations, data and quotations[0] refer to the same object. Here is an example of what is happening:
var a = {num: 1};
var b = a;
b.num = 2;
console.log(a.num); // prints 2
The same thing happens when an object is pushed to an array. quotations does not contain a copy of data, it contains a reference to data so that modifying data also modifies quotations. To fix this, each element of quotations must refer to a different data object. This can be accomplished by defining data inside of the function instead of outside.
Replace
var data = {};
$("#addquotation").click(function() {
// populate data, push to quotations
});
with
$("#addquotation").click(function() {
var data = {};
// populate data, push to quotations
});
I would like to create a javascript json array. At the and I would Like to have something like this :
var requestData= {"uris":["SampleName1", "SampleName2", "SampleName3"],"limit":100 };
The names are stored in another variable called result.results.bindings I think my for loop should be like this :
for(binding in result.results.bindings){
// binding holds SampleName1,sampleName2.. etc
}
So how could I create the array that I mentioned above?
Do you mean something like this?
var data = [];
for(binding in result.results.bindings)
data.push(binding);
var returnObject = {uris: data, limit: 100};
I do not know the structure of your data in result.results.bindings, but with the for loop you are looping over the keys of the object / array.
If you want to loop over the values and the data-source is an array you can use this:
var data = [];
result.results.bindings.forEach(function(value) {
data.push(value);
});
var returnObject = {uris: data, limit: 100};
var requestData = {};
var uris = [];
for (binding in result.results.bindings){
uris.push(binding);
}
requestData.uris = uris;
Edited as suggestion from #BenM:
var requestData = {};
requestData.uris = result.results.bindings;
I think for-in loop is not a good practice with array, It's good with object
for(var i = 0, uris = []; i < result.results.bindings.length; i++)
uris.push(result.results.bindings[i]);
var returnObject = {"uris": uris, "limit": 100};
console.log(returnObject);
var data = [];
result.results.bindings.forEach(function(value) {
eval('data.' + value + ' = ' + value);
});
// then access your variables like
alert(data.SampleName1);
I have a variable which contains data like this
var values = "VItDTotal,123,234,234,2345,1234,123,435,10,TestCase,123,234,234,2345,1234,123,435,5"
and I want to convert this string of data to a two dimensional array like this
[VItDTotal,123,234,234,2345,1234,123,435,10] //1st row
[TestCase, 123,234,234,2345,1234,123,435,5] //2nd row
How can I convert a JS variable to a two dimensional array?
I want to append these values to a datatable, how can I achieve this by using jQuery?
I hope this might help...
var values = "VItDTotal,123,234,234,2345,1234,123,435,10,TestCase,123,234,234,2345,1234,123,435,5"
var splittedArray = values.split(',')
var resultArray = new Array();
var resultKey = -1;
for(var i=0; i<splittedArray.length; i++) {
if(isNaN(splittedArray[i])) {
resultKey++;
resultArray[resultKey] = new Array();
resultArray[resultKey].push(splittedArray[i])
} else {
resultArray[resultKey].push(splittedArray[i])
}
}
I work this way:
//get the index where ",TestCase" is
var index = values.indexOf(",TestCase");
//create two arrays to the values
var part_one = [], part_two = [];
//slice the value from 0 to index and push part one
part_one.push(values.slice(0,index));
//slice the value from index+1 to the end and push part two
part_two.push(values.slice(index+1, values.length));
Not my favourite, but, are you after something like this?
var values = ["VItDTotal",123,234,234,2345,1234,123,435,10,"TestCase",123,234,234,2345,1234,123,435,5];
var vals = [values.
join(",").
replace(/,([a-z]+)(?!.*[a-z]+)/gi, " devider $1").
split(/\s+devider\s+/gi)];
console.log(vals);
I need to test all the words entered into an input against 3 objects and determine which array they belong to so I can output a URL to an API.
I want to achieve this with Javascript/jQuery.
For example if the input had these words: keyword1 keyword2 keyword3 keyword5
All keyword entries will be added from a autocomplete plugin.
I then need to test them against 3 arrays.
var array1 = ["keyword2", "keyword6"];
var array2 = ["keyword3", "keyword4"];
var array3 = ["keyword1", "keyword5"];
I need to determine what array they came from so I can output a URL and add the values to specific keys in a URL.
Example:
domain.com/api?array1= [insert keyword(s)] &array2= [insert keyword(s)] &array3= [insert keyword(s)]
The keywords need to be sent as an array and must have spaces replaced with dashes.
I am using jQuery to perform a GET request with the URL generated.
You can make the code shorter by creating an array of arrays but this works
var input = "keyword1 keyword2 keyword3 keyword5".split(" ");
var array1 = ["keyword2", "keyword6"];
var array2 = ["keyword3", "keyword4"];
var array3 = ["keyword1", "keyword5"];
var arr1=[],arr2=[],arr3=[];
$.each(input,function(_,keyword) {
if ($.inArray(keyword,array1) !=-1) arr1.push(keyword);
if ($.inArray(keyword,array2) !=-1) arr2.push(keyword);
if ($.inArray(keyword,array3) !=-1) arr3.push(keyword);
});
var url = "domain.com/api/?",keywords="";
if (arr1.length>0) keywords += "&array1="+arr1.join(",");
if (arr2.length>0) keywords += "&array2="+arr2.join(",");
if (arr3.length>0) keywords += "&array3="+arr3.join(",");
if (keywords.length>0) url += keywords.substring(1).replace(/ /g,"-");
console.log(url)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
You can put all the array objects into a parent array and then loop it
var parentArray = [
["keyword2", "keyword6"],
["keyword3", "keyword4"],
["keyword1", "keyword5"]
]
$.each(parentArray,function(key,value){
//here you can check
$.each(value,function(key1,value1){
if('your key word') == value1{
// then the array you are looking for would be "key" of that particular loop
}
});
});
EDIT: Now, this should definitely work
Here's a vanilla JS version:
var words = 'keyword1 keyword2 keyword3 keyword5';
// first create an object that contains your arrays
var dict = {
array1: ["keyword2", "keyword6"],
array2: ["keyword3", "keyword4"],
array3: ["keyword1", "keyword5"]
}
// start building up a new object that mirrors the existing one
// but that only contains those keywords that are in the input string
function buildURLObj(dict, words) {
var out = {};
// split the keywords string into an array
words = words.split(' ');
// loop over the object
for (var p in dict) {
out[p] = [];
// loop over the array of keywords
for (var i = 0, l = words.length; i < l; i++) {
// if the keyword in the array, push it to the
// temporary object
if (dict[p].indexOf(words[i]) > -1) {
out[p].push(words[i]);
}
}
}
// return the completed URL using createURL
return createURL(out);
}
// create a URL from the new object
function createURL(arr) {
var url = [];
for (var p in arr) {
// if the array is not empty, don't add it to the completed URL
// otherwise start building up the URL string
if [arr[p].length) {
var subURL = [];
subURL.push(p);
subURL.push('[' + arr[p].join('-') + ']');
url.push(subURL.join('='));
}
}
// return the completed URL
return url.join('&');
}
// "array1=[keyword2]&array2=[keyword3]&array3=[keyword1-keyword5]"
buildURL(dict, words);
DEMO