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Development

When to use ‘classes’ vs ‘className’ with Material UI?

I’m a little confused with the two properties. If I have, const useStyles = makeStyles(() => ({ style: { width: 600, height: 400, }, })); Then, I can do, const classes = useStyles(); <SomeComponent className={classes.style} /> But I can also do, const classes = useStyles(); <SomeComponent classes={classes} /> What is the difference between these two?

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Development

Annotation with symbols inside stacked bar charts using Google Chart API

I have a stacked bar chart where I need to annotate the bars with $ symbol as the profit and costs are currency. I am successful in annotating of the bars without currency symbol but I am unable to display with the $ prefixed. Could anyone throw light on this <html> <head> <script type=”text/javascript” src=”https://www.gstatic.com/charts/loader.js”></script> […]

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Development

Why is JavaScript preventing a from work?

I have a php page that loads pieces of it from some other files: index.php <?php require ‘head.php’; require ‘main.php’; require ‘foot.php’; ?> At the foot.php file I have a form with 2 input text, a checkbox and a submit which do not work, actually text can be filled, but the chekbox does not work […]

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Development

checkbox in a listview inside a ‘Dialog’ not working in flutter

I’m triggering a dialog box on a button click in which I want to print some rows containing data fetched from firestore. The ‘Dialog’ box has a Listview widget where I’m looping through my document snapshot to print rows along with checkboxes in front of them. Basically I want to perform an action on all […]

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Development Google

How to style x-axis labels background color of google bar charts? [on hold]

I want to style x-axis label of a bar chart from google chart website, but i can’t understand how to style the background color of labels because of these labels are put in text tag so i can change the color of fonts but can’t background color. Google Chart links: developers.google.com. I want to style […]

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Development

How to use svg icon in every slice of pie chart of zingchart?

I want to add svg icon in every value slice of pie-chart like show in this image. image I have search too much on google about but i can’t, can someone help me. this code which i am trying.. var myConfig = { “type”: “ring”, “plot”: { “refAngle”: 320, “slice”: 100 }, “legend”: { “align”:’center’, […]

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Development

Flutter error Column’s children must not contain any null values, but a null value was found at index 0

I was trying a camera app in flutter and encountered the issue that column’s children must not contain null values, but a null value was found at index 0. I am not able to pass the widget in column’s children. import ‘dart:io’; import ‘package:flutter/material.dart’; import ‘package:image_picker/image_picker.dart’; void main() { runApp(new MaterialApp( title: “Camera App”, home: […]

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Development

role annotation in google chart

i wanna add role:’annotation’ to show up the value but i don’t know how .. and if there any other way to make tooltip always showing please tell me how thanks editing : if there any other way to make tooltip always showing please tell me how thanks editing : <script type=”text/javascript”> google.load(“visualization”, “1”, { […]

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Development

Python word cloud – TypeError: expected string

I’m trying to create a word cloud from a list of tuples which has the frequency values for each as below. The type(subdict) shows as dict. My code to create a word cloud is as below: from wordcloud import WordCloud import random def grey_color(word, font_size, position, orientation, random_state=None, **kwargs): return ‘hsl(0, 0%%, %d%%)’ % random.randint(50, […]

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Development

ImagePicker works on simulator but on real device (cannot load asset error)

Before writing this question, I checked all the previous sections. The Idea: I am using ImagePicker pub to take an image. The image.path is stored in the database, and it is retrieved later by the user. The problem: The image appears in the simulator, and sometimes can be retrieved by the user. Sometimes it cannot. […]