How i Remove duplicates from my string
var string="1,2,3,2,4,5,4,5,6,7,6";
But i want like this
var string="1,2,3,4,5,6,7";
Yes you can do it easily, Here is the working example
data = "1,2,3,2,4,5,4,5,6,7,6";
arr = $.unique(data.split(','));
data = arr.join(",");
console.log(data);
Create the following prototype and use it to remove duplicates from any array.
Array.prototype.unique = function () {
var arrVal = this;
var uniqueArr = [];
for (var i = arrVal.length; i--; ) {
var val = arrVal[i];
if ($.inArray(val, uniqueArr) === -1) {
uniqueArr.unshift(val);
}
}
return uniqueArr;
}
Ex:
var str = "1,6,7,7,8,9";
var array1 = str.split(',');
var array1 = array1.unique();
console.log(array1); // [1,6,7,8,9]
str = array1.join();
Use the following to push unique values into a new array.
var names = [1,2,2,3,4,5,6];
var newNames = [];
$.each(names, function(index, value) {
if($.inArray(value, newNames) === -1)
newNames.push(value);
});
Related
I have two array objects as below:
var arrayOne = [{"Name":"job","SubscriptionGUID":"8ead7edfa460"},{"Name":"TestJobSQL","SubscriptionGUID":"09e7dbff7779"}];
var arrayTwo = [{"UserSubscriptionID":13,"SubscriptionGUID":"8ead7edfa460","Name":"job"}];
var arrayDiff = [];
I need to compare the element Name and remove matched element only show not matching array element in arrayDiff
as per above example My new arrayDiff should be
var arrayDiff = [{"Name":"TestJobSQL"}]; or var arrayDiff = ['TestJobSQL'];
if the arrayTwo is
var arrayTwo = [];
then arrayDiff should return
var arrayDiff = [{"Name":"TestJobSQL"},{"Name":"Job"}]; or var arrayDiff = ['TestJobSQL', 'Job'];
Try this
var arrayOne = [{"Name":"job","SubscriptionGUID":"8ead7edfa460"},{"Name":"TestJobSQL","SubscriptionGUID":"09e7dbff7779"}];
var arrayTwo = [{"UserSubscriptionID":13,"SubscriptionGUID":"8ead7edfa460","Name":"job"}];
var arrayDiff = [];
arrayOne.forEach(function(item, index){
var found = false;
arrayTwo.forEach(function(item1, index1){
if(item.Name == item1.Name) {
found = true;
}
})
if(found == false) {
arrayDiff.push({ Name : item.Name});
}
})
console.log(arrayDiff);
An easy way would be using lodash's and _.differenceBy method.
It let's you make two arrays diff based on the property you want.
var createDiffArray = function(attrName,arrayOne,arrayTwo){
var arrayDif = [];
for (let element of arrayOne){
if (arrayTwo.find( x => x[attrName] === element[attrName]) !== undefined){
arrayDif.push(element[attrName]);
}
}
return arrayDif;
}
var arrayOne = [{"Name":"job","SubscriptionGUID":"8ead7edfa460"},{"Name":"TestJobSQL","SubscriptionGUID":"09e7dbff7779"}];
var arrayTwo = [{"UserSubscriptionID":13,"SubscriptionGUID":"8ead7edfa460","Name":"job"}];
//arrayTwo=[];
var result = [];
arrayOne.forEach(function(e){
if(arrayTwo.length==0){
result.push(e.Name);
}else{
arrayTwo.forEach(function(e2){
if(e.Name!=e2.Name){
result.push(e.Name);
}
})
}
})
console.log(result);
How to count the JSON object and on the basis of count take the same output
var obj =
[
{"id":"0","name":"Mike Johnson","group":1},
{"id":"1","name":"Bob Smith","group":2},
{"id":"2","name":"Richard Thomas","group":3},
{"id":"3","name":"Betty White","group":16},
{"id":"4","name":"Tim Thompson","group":3},
{"id":"5","name":"Carl Lewis","group":16},
{"id":"6","name":"Kathy Towers","group":3},
{"id":"7","name":"Billy Bob","group":1},
{"id":"8","name":"Sally Bailey","group":1}
];
First I would like the count after it on the basis of count. I want same output like input.
for Count:-
var count = 0;
function getCount() {
for (var i = 0; i < obj.length; i++) {
count++;
}
return count;
}
for output :-
function showDetails() this is not giving the proper output
{
for(var j=0; j< count; j++){
obj.push([{j}]);
}
alert(obj.name);
}
alert(showDetails());
And I want an output like:-
var obj =
[
{"id":"0","name":"Mike Johnson","group":1},
{"id":"1","name":"Bob Smith","group":2},
{"id":"2","name":"Richard Thomas","group":3},
{"id":"3","name":"Betty White","group":16},
{"id":"4","name":"Tim Thompson","group":3},
{"id":"5","name":"Carl Lewis","group":16},
{"id":"6","name":"Kathy Towers","group":3},
{"id":"7","name":"Billy Bob","group":1},
{"id":"8","name":"Sally Bailey","group":1}
];
Can anybody help me please?
var data ="January,February,March,April,May,June,July,August,September,October";
var obj = data.split(',').map((item)=>{
return {
name:item
}
});
obj will be the desired output
var str = "January,February,March,April,May,June,July,August,September,October";
var arr = str.split(',').map(function(v) {
return {name: v};
});
console.log(arr);
var str = "January,February,March,April,May,June,July,August,September,October";
var months = str.split(",");
var result = [];
for (i in months)
{
var month = {};
month.name = months[i];
//you can do more things else here, for example:
//month.monthOfYear = (i+1);
//month.numberOfDay = 123123123;
result.push(month);
}
You can do something like this:
var array = string.split(",");
var finalArray = [];
array.forEach(function(item){
var obj = {
name: item
}
finalArray.push(obj);
});
console.log(finalArray);
MDN reference
use var array = string.split(',');
For a more ES2015 heavy version. Constants, arrow function and implicit return statement.
const str = 'January,February,March,April,May,June,July,August,September,October'
const result = str.split(',').map(name => ({name}))
console.log(result)
My function is
var MyArray= [];
$('input:checked').each(function(index) {
MyArray= ($(this).attr('id') + ":" + $(this).val()).length;
});
My array is
Array [ "1:R1", "2:R2", "3:R3", "4:R1" ]
I would like to count the differents values and to get this object
Object {R1:2, R2:1, R3:1}
Instead of putting the values in an array and then get the values out of the array to process them and create an object, put them in the object to start with:
var map = {};
$('input:checked').each(function() {
var key = $(this).val();
if (key in map) {
map[key]++;
} else {
map[key] = 1;
}
});
Demo: http://jsfiddle.net/Guffa/0a35c6yp/
You can convert your var with this code :
var arr = [ "1:R1", "2:R2", "3:R3", "4:R1" ];
var obj = {};
for(var i=0, l=arr.length; i<l; i++) {
var parts = arr[i].split(':');
if(parts.length > 1) {
if(!obj[parts[1]]) {
obj[parts[1]] = 0;
}
obj[parts[1]]++
}
}
console.log(obj)
Or create directly the correct object :
var obj = {};
$('input:checked').each(function (index) {
var key = $(this).val();
if (!obj[key]) {
obj[key] = 0;
}
obj[key]++
});
Use a regex to capture the correct portion of the string, and add them as keys to the object, incrementing the value if it already exists:
var regex = /\d+:(R\d+)/
var obj = {};
arr.forEach(function (el) {
var key = el.match(regex)[1];
if (!obj[key]) obj[key] = 0;
obj[key]++;
});
DEMO
You could try something like that:
Write your Array into a Map and step up your value each time your map already knows the key.
for(var i = 0; i < myArray.length; i++){
var entry = myArray[i];
var key = entry.split(":")[1];
if(myMap.has(key))
myMap.set(key, myMap.get(key) + 1);
else
myMap.set(key, 1);
}
DEMO
I have tag like this, how the best way to get every key and value of those attribute and populate it within an array (number of attribute will be increasing)?
myData = '[data attr1="value1" attr2="value2" attr3="value3"]';
and get result array :
var arr = new Array();
arr['attr1'] = "value1";
arr['attr2'] = "value2";
arr['attr3'] = "value3";
and so on...
This probably does what you want, though it assumes that tag is already in the format you have described, i.e. a singular occurrence of [data ... ].
Also, the regular expression is purely based on what I've seen in your question; not sure whether it will break on other strings.
function decode(tag)
{
var r = /(\w+)="([^"]*)"/g,
h = {};
while ((m = r.exec(tag)) !== null) {
h[m[1]] = m[2];
}
return h;
}
Since you have string key in the data, use jquery object instead of array.
var arr = {};
var str = '[data attr1="value1" attr2="value2" attr3="value3"]';
var n = str.split('[data ');
var str_arr = n[1].replace(']','').split(" ");
jQuery.each(str_arr,function(val){
var x = str_arr[val].split('=');
arr[x[0]] = x[1].replace('"','').slice(0,-1);
});
console.log(arr);
Try this code. It may help you.
Here is the DEMO
Though it can be more optimized if you put some more details about your code.
var tagRe = /\[(\w+)((?:\s+\w+="[^"]{0,50}")*)\s*]/g;
var attrRe = /\b(\w+)="([^"]*)"/g;
function parse(text) {
var result = [];
tagRe.lastIndex = 0; // reset start position
var tagMatch = tagRe.exec(text);
while (tagMatch) {
var currentTag = { 'name': tagMatch[1], 'attrs': {} };
var attrString = tagMatch[2];
attrRe.lastIndex = 0;
var attrMatch = attrRe.exec(attrString);
while (attrMatch) {
var attrName = attrMatch[1];
var attrValue = attrMatch[2];
currentTag.attrs[attrName] = attrValue;
attrMatch = attrRe.exec(attrString); // next match
}
result.push(currentTag);
tagMatch = tagRe.exec(text);
}
return result;
}
parse('[data attr1="value1" attr2="value2" attr3="value3"]');
> [{name:'data',attrs:{attr1:'value1',attr2:'value2',attr3:'value3'}}]
This works for any number of tags in the string. The name of the tag does not matter.
I would like to convert something like this (used in eg. in class):
var classname = "username_admin color_red strength_good"
into:
myvalues = {
username: 'admin',
color: 'red',
strength: 'good'
}
Here's at present my closest reach:
myvalues = $.map(classname.split(' '),function(el, i) {
var tmp = el.split('_');
var res = {};
res[tmp[0]] = tmp[1];
return res;
});
How to continue? http://jsfiddle.net/4EvWw/
I'd use each() like this because map() returns element of an array as stated in the docs:
jQuery.map( array, callback(elementOfArray, indexInArray) )
Returns: Array
Description: Translate all items in an array or object to new
array of items.
var classname = "username_admin color_red strength_good";
var res = {};
$.each(classname.split(' '),function(i, el) {
var tmp = el.split('_');
res[tmp[0]] = tmp[1];
});
console.log(res);
fiddle here http://jsfiddle.net/4EvWw/1/
You want to use .each rather than .map, and define res outside of the function:
var res = {};
$.each(classname.split(' '),function(i, el) {
var tmp = el.split('_');
res[tmp[0]] = tmp[1];
});
console.log(res);
http://jsfiddle.net/infernalbadger/4EvWw/3/
updated your code to the following http://jsfiddle.net/manuel/4EvWw/2/
var classname = "username_admin color_red strength_good";
var res = {};
$.map(classname.split(' '),function(el, i) {
var tmp = el.split('_');
res[tmp[0]] = tmp[1];
});
console.log(res);