I am passing a variable constructed as the following code for Lookup.
let classLookup = {};
let classOptions = responseData.classOptions;
for (var i = 0; i < classOptions.length; ++i) {
classLookup[i] = classOptions[i];
}
Here responseData.classOptions is an array:
[{0: "A"}, {1:"B"}....]
classLookup is then constructed as:
{0: "A", 1: "B" ....}
Passing classLookup to material-table does not get recognized.
{
title: 'Class',
field: 'Class',
lookup: classLookup
},
However, if I hard coded classLookup as
let classLookup = {0: "A", 1: "B" ....}
It works fine.
I am clueless what was wrong with the variable I constructed. Please help. Thanks in advance.
Issue found. I shall use useState to set classLookup.
const [classLookup, setClassLookup] = useState();
let tmp = {};
let classOptions = responseData.classOptions;
for (var i = 0; i < classOptions.length; ++i) {
tmp[i] = classOptions[i];
}
setClassLookup(tmp)
Related
Here is my code I tried,
var array=[];
var list = this.state.list;
var getList = function(i){
var add = +i + 1;
return {
["value"+add]:{
Description:list[i].Description,
Length:list[i].Length,
Height:list[i].Height,
Weight:list[i].Weight,
VolumeWeight:list[i].VolumeWeight,
ActualWeight:list[i].ActualWeight,
}
}
}.bind(this)
for(var i in list){
array.push(getList(i));
}
var dataArray = array.map(function(e){
return JSON.stringify(e);
});
dataString = dataArray.join(",");
data1 = {
ConsigneeBranchName:this.state.searchText,
ConsigneeBranchCode:this.state.code,
ConsigneeBranchFullAddress:this.state.DAddress,
SenderBranchCode:this.state.code1,
SenderBranchName:this.state.searchTexts,
SenderBranchFullAddress:this.state.Address,
CreatedByEmployeeCode:id,
CreatedByEmployeeFullName:userName,
jsonString:{
JsonValues:{
id:"MyID",
values:dataString
}
}
}
But I want the result is exactly this
var result = {
"ConsigneeBranchName":"",
"ConsigneeBranchCode":"",
"ConsigneeBranchFullAddress":"",
"SenderBranchCode":"",
"SenderBranchName":"",
"SenderBranchFullAddress":"",
"CreatedByEmployeeCode":"",
"CreatedByEmployeeFullName":"",
"jsonString":"{
"JsonValues": {
"id": "MyID",
"values": {
"value1":{
"Description”:"testSmarter1",
"Length”:"60",
"Height”:"50",
"Weight”:"70",
"VolumeWeight”:"75",
"ActualWeight”:”78"
},
"value2:{
"Description":"Documents",
"Length":"120",
"Height":"68",
"Weight":"75",
"VolumeWeight":"122.4",
"ActualWeight":"123"
},
}
}
}
};
Please any one help me
I want the object with dynamic keys within a single object {key1:{des:1,value:as},key2:{des:2,value:aw},key3:{des:3,value:au}}
can you please help me I have tried so many times
see this below image I want this part, inside the single object, I can join multiple objects with dynamic keys
lodash already has a function called keyBy, you can use it to get this functionality. If adding lodash doesn't make sense in your project.
I have implemented a vanilla JS version.
function keyBy(array, mapperFn) {
const resultObj = {};
array.map(item => resultObj[mapperFn(item)] = item);
return resultObj;
}
function arrayToObject (array, keyName = 'id') {
return keyBy(array, function(element) {return element[keyName]});
}
API:
arrayToObject(targetArray, stringNameOfThePorpertyYouWantToUseAsKey);
USAGE:
const listOfUsers = [{name: 'Jenitha', reputation: 6}, {name: 'Chandan', reputation: 3}];
const mapOfUsersByName = arrayToObject(listOfUsers, 'name');
I'm creating a listing app and I want to edit this listed text. I dont know how to do this.
editTodo(key)
{this.state.todoList.splice(key,1);
this.setState({todoText: this.state.todoText})
and other thing is
let tds = this.state.todoList.map((val,key) => {
return <ToDo key = {key}
keyval = {key}
val = {val}
deleteTodo = { () => this.deleteTodo(key)} />
});
but It does not work. I'm new at React-native.
If you want to remove an item from a list, you can use this code:
let t = this.state.todoList;
t.splice(key, 1);
this.setState({todoList: t})
If you don't know index of item to remove, you can use this:
let t = this.state.todoList;
let i = t.indexOf(val, 0);
if (i > -1){ //if val exist in list
t.splice(i, 1);
}
this.setState({todoList: t})
I hope this can help you.
EDIT:
To edit a cell of an array, you can use this:
let t = this.state.todoList;
t[key] = 'new value'
this.setState({todoList: t})
if todoList is an array of objects, for example:
let todoList: [ {id:1, name:'a'}, {id:2, name:'b'}, {id:3, name:'c'}]
You can use this:
let t = this.state.todoList;
t[key].name = 'new name'
t[key].id = newID
this.setState({todoList: t})
or you can pass an object and assign it to cell like this:
Edit = (newObj) => {
let t = this.state.todoList;
t[key] = newObj
this.setState({todoList: t})
}
I want to create a simple Tab but I think it is strange for my using:
var root = document.body
var index = {
view: () => index.html,
html: m('div', { id: 'div1' }, [
[
(function () {
let value = ["A", "B", "C", "D"]
let output = []
for (let i = 0; i < 4; i++) {
output.push(m('input', {
class: (function () {
if (i == 0) return "onit"
})(),
type: 'button',
value: value[i],
onclick: function () {
let div1 = document.getElementById("div1")
let btn = div1.getElementsByTagName("input")
let div1_div = div1.getElementsByTagName("div")
let _this = this
let num = (function () {
for (let i = 0; i < btn.length; i++) {
if (btn[i] == _this) {
return i
}
}
})()
for (let i = 0; i < btn.length; i++) {
btn[i].className = ""
}
this.className = "onit"
for (let i = 0; i < div1_div.length; i++) {
div1_div[i].setAttribute("style", "dispaly:none")
}
div1_div[num].setAttribute("style", "display:block")
}
}))
}
return output
})()
],
[
(function () {
let arr = ["aaa", "bbb", "ccc", "ddd"]
let output = []
for (let i = 0; i < 4; i++) {
output.push(m("div", { style: (the => i == 0 ? "display:block" : undefined)() }, arr[i]))
}
return output
})()
]
])
}
m.route(root, "/index", {
"/index": index
})
Is there any other simple way to achieve this?
If I click the button, the style of button will change and the display of all "div" will be changed. Screenshot
In mithril.js views you can only use expressions, for-loops, ifs and so on are no expressions and only possible the way you did it. Nevertheless there are other ways to achieve this
Loops can be achieved using the functional counterparts
let values = ["A", "B", "C", "D"]
let output = []
function(){
for (let i = 0; i < 4; i++) {
output.push(m('span', value)
}
return output
}()
can be written as
values.map(value => m('span', value)
if-Statements can be written using the ternary expression
function() {
if (condition) {
return 'this'
} else {
return 'that'
}
}()
just use
condition ? 'this' : 'that'
You can also use view functions if your view code gets to deeply nested and you need custom logic:
function someOtherView(someData) {
if (someData.shouldBeShown) {
return someData.text
}
}
function someView() {
...
someOtherView(someData)
...
}
This also makes your views more readable.
I'm trying to add an object into a nested array, and it is not working, but I've used this for other states and it works fine.
Has it got something to do with it begin a nested array?
this is the code I'm using
Vue.set(state.sections[getCurrentSection(state).index].rows[getCurrentRow(state).index].columns[getCurrentColumn(state).index].elements, 0, element)
this is the element object
var element = {
id: id,
style: {
backgroundColor: {
value: 'rgba(255,255,255,1)',
},
},
}
what am I doing wrong?
UPDATE
Another option to clone:
function hasProp(arg1, arg2) {
return Object.prototype.hasOwnProperty.call(arg1, arg2);
}
function extend(arg1, arg2) {
const keys = Object.keys(arg2);
const len = keys.length;
let i = 0;
while (i < len) {
arg1[keys[i]] = arg2[keys[i]];
i += 1;
}
if (hasProp(arg2, 'toString')) {
arg1.toString = arg2.toString;
}
if (hasProp(arg2, 'valueOf')) {
arg1.valueOf = arg2.valueOf;
}
return arg1;
}
const obj1 = {
a: 1,
b: 2,
c: { a: 1, b: 2}
};
const cloned = extend({}, obj1);
cloned.a = 9999;
console.log(obj1, cloned);
Make a deep copy of your state.sections;
Create a new object and make your modifications on it;
Replace state.sections with you new object - state.sections = Object.assign({}, newObject).
Your state and your view updated.
I have bar chart, whose x-axis labels is generated dynamically from db, I am getting these values through ajax call data
'{value:1,text:"x"},{value:2,text:"Vikash"},{value:3,text:"y"},{value:4,text:"z"}'.
How to pass these values to label parameter. I tried passing it as an array and also as json but nothing seems to work.. Any ideas..
Here is my code:
makeBarChart=function() {
animChart = new dojox.charting.Chart2D("animChart");
animChart.setTheme(dojox.charting.themes.MiamiNice)
.addAxis("x",{
labels: [ myLabelSeriesarray ], gap: 20}).
addAxis("y", {
vertical: true,
fixLower: "major",
fixUpper: "major",
includeZero: true
}).
addPlot("default", {
type: "ClusteredColumns",
gap: 10
}).
addSeries("Series A", closedSeries).
addSeries("Series B", othersSeries).
render();
};
dojo.addOnLoad(makeBarChart);
jsp code:
var labelDis = new Array(pieData.length); // pieData is the JSON value getting from Java
for(var i = 0;i<pieData.length;i++){
labelDis[i] = new Array(2);
labelDis[i]['value'] = i + 1;
labelDis[i]['text'] = pieData[i]['axis'];
}
Java/Servlet code:
JSONObject jSONObject = new JSONObject();
jSONObject.put("axis", "value from database");
jSONArray.put(jSONObject);
out.print(jSONArray.toString());
Suppose you have received data in json format through ajax call and you want to create dynamic labels using that data.
var jsonArray= ["label1","label2","label3"];
var labelsArray = [];
for (var i = 0; i < jsonArray.length; i++,) {
var obj = {};
obj.value = i;
obj.text = jsonArray[i];
labelsArray.push(obj);
}
Set the labels in x Axis to this labelsArray
this.chart1.addAxis("x", {
title: "Collection Date",
titleOrientation: "away",
titleGap:20,
labels:labelsArray
})