Mixing
Apply style to only one element of a map of elements
0
I am trying to imitate a behaviour of a checked componenet applied to a map of divs. I am mapping displayName and imageUrl of an array of elements called price. On click of the div, in handleProductSelect function, I would like only the clicked div to be highlighted, however they all become highlighted, which makes sense, because I am collectively making a change in the style.
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
}
}
handleProductSelect() {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
})
}
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: this.state.borderColor,
}}
onClick={this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
Does anyone have any idea on how to make only the clicked element highlighted?
javascript reactjs
asked Nov 21 '18 at 19:24
kseniaksenia
658
add a comment |
0
I am trying to imitate a behaviour of a checked componenet applied to a map of divs. I am mapping displayName and imageUrl of an array of elements called price. On click of the div, in handleProductSelect function, I would like only the clicked div to be highlighted, however they all become highlighted, which makes sense, because I am collectively making a change in the style.
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
}
}
handleProductSelect() {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
})
}
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: this.state.borderColor,
}}
onClick={this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
Does anyone have any idea on how to make only the clicked element highlighted?
javascript reactjs
asked Nov 21 '18 at 19:24
kseniaksenia
658
add a comment |
0
0
0
I am trying to imitate a behaviour of a checked componenet applied to a map of divs. I am mapping displayName and imageUrl of an array of elements called price. On click of the div, in handleProductSelect function, I would like only the clicked div to be highlighted, however they all become highlighted, which makes sense, because I am collectively making a change in the style.
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
}
}
handleProductSelect() {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
})
}
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: this.state.borderColor,
}}
onClick={this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
Does anyone have any idea on how to make only the clicked element highlighted?
javascript reactjs
asked Nov 21 '18 at 19:24
kseniaksenia
658
I am trying to imitate a behaviour of a checked componenet applied to a map of divs. I am mapping displayName and imageUrl of an array of elements called price. On click of the div, in handleProductSelect function, I would like only the clicked div to be highlighted, however they all become highlighted, which makes sense, because I am collectively making a change in the style.
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
}
}
handleProductSelect() {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
})
}
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: this.state.borderColor,
}}
onClick={this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
Does anyone have any idea on how to make only the clicked element highlighted?
javascript reactjs
javascript reactjs
asked Nov 21 '18 at 19:24
kseniaksenia
658
asked Nov 21 '18 at 19:24
kseniaksenia
658
asked Nov 21 '18 at 19:24
kseniaksenia
658
asked Nov 21 '18 at 19:24
kseniaksenia
658
asked Nov 21 '18 at 19:24
kseniaksenia
658
658
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
1
Use the id that you are passing to your handleProductSelect function and save it to the state. You can use it in the render method, to figure which one is the clicked element and apply the appropriate style to it
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: ( p.productId === this.state.active_id ? this.state.borderColor : 'white'),
}}
onClick={this.handleProductSelect.bind(this, p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
thank you, but this somehow send me into an infinite loop, with the following warning:react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as withinrender). Render methods should be a pure function of props and state.
– ksenia
Nov 21 '18 at 19:43
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function inonSubmit, which is what was happening
– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,Cannot read property 'borderColor' of undefined
– ksenia
Nov 21 '18 at 19:53
You can also passthistobindlike sothis.handleProductSelect.bind(this, p.productId)
– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
try that, you should passthisto thebindfunction
– Velimir Tchatchevsky
Nov 21 '18 at 20:03
|
show 2 more comments
0
Here I have fixes the syntax of ternary operator style css, and fatArrow function call with onClick event
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
p.productId === this.state.active_id ? { borderColor: this.state.borderColor} : {borderColor : 'white'}
}}
onClick={(p)=> this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Use the id that you are passing to your handleProductSelect function and save it to the state. You can use it in the render method, to figure which one is the clicked element and apply the appropriate style to it
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: ( p.productId === this.state.active_id ? this.state.borderColor : 'white'),
}}
onClick={this.handleProductSelect.bind(this, p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
thank you, but this somehow send me into an infinite loop, with the following warning:react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as withinrender). Render methods should be a pure function of props and state.
– ksenia
Nov 21 '18 at 19:43
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function inonSubmit, which is what was happening
– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,Cannot read property 'borderColor' of undefined
– ksenia
Nov 21 '18 at 19:53
You can also passthistobindlike sothis.handleProductSelect.bind(this, p.productId)
– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
try that, you should passthisto thebindfunction
– Velimir Tchatchevsky
Nov 21 '18 at 20:03
|
show 2 more comments
1
Use the id that you are passing to your handleProductSelect function and save it to the state. You can use it in the render method, to figure which one is the clicked element and apply the appropriate style to it
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: ( p.productId === this.state.active_id ? this.state.borderColor : 'white'),
}}
onClick={this.handleProductSelect.bind(this, p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
thank you, but this somehow send me into an infinite loop, with the following warning:react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as withinrender). Render methods should be a pure function of props and state.
– ksenia
Nov 21 '18 at 19:43
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function inonSubmit, which is what was happening
– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,Cannot read property 'borderColor' of undefined
– ksenia
Nov 21 '18 at 19:53
You can also passthistobindlike sothis.handleProductSelect.bind(this, p.productId)
– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
try that, you should passthisto thebindfunction
– Velimir Tchatchevsky
Nov 21 '18 at 20:03
|
show 2 more comments
1
1
1
Use the id that you are passing to your handleProductSelect function and save it to the state. You can use it in the render method, to figure which one is the clicked element and apply the appropriate style to it
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: ( p.productId === this.state.active_id ? this.state.borderColor : 'white'),
}}
onClick={this.handleProductSelect.bind(this, p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
Use the id that you are passing to your handleProductSelect function and save it to the state. You can use it in the render method, to figure which one is the clicked element and apply the appropriate style to it
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
borderColor: ( p.productId === this.state.active_id ? this.state.borderColor : 'white'),
}}
onClick={this.handleProductSelect.bind(this, p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
edited Nov 21 '18 at 20:00
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
answered Nov 21 '18 at 19:32
Velimir TchatchevskyVelimir Tchatchevsky
2,17411118
2,17411118
thank you, but this somehow send me into an infinite loop, with the following warning:react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as withinrender). Render methods should be a pure function of props and state.
– ksenia
Nov 21 '18 at 19:43
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function inonSubmit, which is what was happening
– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,Cannot read property 'borderColor' of undefined
– ksenia
Nov 21 '18 at 19:53
You can also passthistobindlike sothis.handleProductSelect.bind(this, p.productId)
– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
try that, you should passthisto thebindfunction
– Velimir Tchatchevsky
Nov 21 '18 at 20:03
|
show 2 more comments
thank you, but this somehow send me into an infinite loop, with the following warning:react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as withinrender). Render methods should be a pure function of props and state.
– ksenia
Nov 21 '18 at 19:43
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function inonSubmit, which is what was happening
– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,Cannot read property 'borderColor' of undefined
– ksenia
Nov 21 '18 at 19:53
You can also passthistobindlike sothis.handleProductSelect.bind(this, p.productId)
– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
try that, you should passthisto thebindfunction
– Velimir Tchatchevsky
Nov 21 '18 at 20:03
thank you, but this somehow send me into an infinite loop, with the following warning:
react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as within render). Render methods should be a pure function of props and state.– ksenia
Nov 21 '18 at 19:43
thank you, but this somehow send me into an infinite loop, with the following warning:
react-dom.development.js:509 Warning: Cannot update during an existing state transition (such as within render). Render methods should be a pure function of props and state.– ksenia
Nov 21 '18 at 19:43
1
1
WOW, I'm sorry for that, check the change. You shouldn't execute the function in
onSubmit, which is what was happening– Velimir Tchatchevsky
Nov 21 '18 at 19:44
WOW, I'm sorry for that, check the change. You shouldn't execute the function in
onSubmit, which is what was happening– Velimir Tchatchevsky
Nov 21 '18 at 19:44
thank you, I am getting another error inside handleProductSelect,
Cannot read property 'borderColor' of undefined– ksenia
Nov 21 '18 at 19:53
thank you, I am getting another error inside handleProductSelect,
Cannot read property 'borderColor' of undefined– ksenia
Nov 21 '18 at 19:53
You can also pass
this to bind like so this.handleProductSelect.bind(this, p.productId)– Velimir Tchatchevsky
Nov 21 '18 at 20:00
You can also pass
this to bind like so this.handleProductSelect.bind(this, p.productId)– Velimir Tchatchevsky
Nov 21 '18 at 20:00
1
1
try that, you should pass
this to the bind function– Velimir Tchatchevsky
Nov 21 '18 at 20:03
try that, you should pass
this to the bind function– Velimir Tchatchevsky
Nov 21 '18 at 20:03
|
show 2 more comments
0
Here I have fixes the syntax of ternary operator style css, and fatArrow function call with onClick event
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
p.productId === this.state.active_id ? { borderColor: this.state.borderColor} : {borderColor : 'white'}
}}
onClick={(p)=> this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
add a comment |
0
Here I have fixes the syntax of ternary operator style css, and fatArrow function call with onClick event
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
p.productId === this.state.active_id ? { borderColor: this.state.borderColor} : {borderColor : 'white'}
}}
onClick={(p)=> this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
add a comment |
0
0
0
Here I have fixes the syntax of ternary operator style css, and fatArrow function call with onClick event
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
p.productId === this.state.active_id ? { borderColor: this.state.borderColor} : {borderColor : 'white'}
}}
onClick={(p)=> this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
Here I have fixes the syntax of ternary operator style css, and fatArrow function call with onClick event
class App extends Component {
constructor(props) {
super(props);
this.state = {
borderColor: 'white',
active_id: null
};
}
handleProductSelect(productId) {
const { borderColor } = this.state;
let newBorderColour = borderColor === 'white' ? 'blue' : 'white';
this.setState({
borderColor: newBorderColour,
active_id: productId
})
}
render {
return(
(price.map(p =>
<div key={p.productId}>
<div
style={{
borderRadius: '10%',
borderStyle: 'solid',
padding: '10px',
marginBottom: 10,
p.productId === this.state.active_id ? { borderColor: this.state.borderColor} : {borderColor : 'white'}
}}
onClick={(p)=> this.handleProductSelect(p.productId)}>
<div>{p.displayName}</div><br />
<div>{p.imageUrl !== '' ? p.imageUrl : <img style={{ width: '100px', height: '50px' }} src={"https://source.unsplash.com/200/150"} />}</div><br />
</div>
</div>
))
}
)}
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
answered Nov 22 '18 at 13:02
Anupam MauryaAnupam Maurya
1369
1369
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