How to put variables inside quotations in react












0














I have the following piece of code,



row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},


I wish to put the state variable (this.state.index) inside the braces, however when i try to concatenate with "+"



 row: {
'&:nth-of-type(' + this.state.index + ')': {
backgroundColor: theme.palette.secondary.dark,

},


I get a type error saying "Expected 1 argument, but got 2", are there any ideas how i could fix or remedy this?



The block of code is using the material UI library (Customized tables), I am pretty sure it's just my syntax that is wrong, and I'm not quite sure why



Reference: https://material-ui.com/demos/tables/



const styles = (theme: Theme) =>
createStyles({
root: {
height: 500,
width: '100%',
marginTop: theme.spacing.unit * 3,
overflowX: 'auto',
},
table: {
minWidth: 700,
},
row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},
},
});









share|improve this question
























  • This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
    – Baruch
    Nov 23 at 0:42










  • developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
    – Truong Dang
    Nov 23 at 0:56










  • I have tried the expression interpolation and get the same problem :/
    – Richard Ng
    Nov 23 at 1:28










  • Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
    – Kevin Bai
    Nov 23 at 2:25












  • I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
    – Richard Ng
    Nov 23 at 2:40
















0














I have the following piece of code,



row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},


I wish to put the state variable (this.state.index) inside the braces, however when i try to concatenate with "+"



 row: {
'&:nth-of-type(' + this.state.index + ')': {
backgroundColor: theme.palette.secondary.dark,

},


I get a type error saying "Expected 1 argument, but got 2", are there any ideas how i could fix or remedy this?



The block of code is using the material UI library (Customized tables), I am pretty sure it's just my syntax that is wrong, and I'm not quite sure why



Reference: https://material-ui.com/demos/tables/



const styles = (theme: Theme) =>
createStyles({
root: {
height: 500,
width: '100%',
marginTop: theme.spacing.unit * 3,
overflowX: 'auto',
},
table: {
minWidth: 700,
},
row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},
},
});









share|improve this question
























  • This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
    – Baruch
    Nov 23 at 0:42










  • developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
    – Truong Dang
    Nov 23 at 0:56










  • I have tried the expression interpolation and get the same problem :/
    – Richard Ng
    Nov 23 at 1:28










  • Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
    – Kevin Bai
    Nov 23 at 2:25












  • I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
    – Richard Ng
    Nov 23 at 2:40














0












0








0







I have the following piece of code,



row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},


I wish to put the state variable (this.state.index) inside the braces, however when i try to concatenate with "+"



 row: {
'&:nth-of-type(' + this.state.index + ')': {
backgroundColor: theme.palette.secondary.dark,

},


I get a type error saying "Expected 1 argument, but got 2", are there any ideas how i could fix or remedy this?



The block of code is using the material UI library (Customized tables), I am pretty sure it's just my syntax that is wrong, and I'm not quite sure why



Reference: https://material-ui.com/demos/tables/



const styles = (theme: Theme) =>
createStyles({
root: {
height: 500,
width: '100%',
marginTop: theme.spacing.unit * 3,
overflowX: 'auto',
},
table: {
minWidth: 700,
},
row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},
},
});









share|improve this question















I have the following piece of code,



row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},


I wish to put the state variable (this.state.index) inside the braces, however when i try to concatenate with "+"



 row: {
'&:nth-of-type(' + this.state.index + ')': {
backgroundColor: theme.palette.secondary.dark,

},


I get a type error saying "Expected 1 argument, but got 2", are there any ideas how i could fix or remedy this?



The block of code is using the material UI library (Customized tables), I am pretty sure it's just my syntax that is wrong, and I'm not quite sure why



Reference: https://material-ui.com/demos/tables/



const styles = (theme: Theme) =>
createStyles({
root: {
height: 500,
width: '100%',
marginTop: theme.spacing.unit * 3,
overflowX: 'auto',
},
table: {
minWidth: 700,
},
row: {
'&:nth-of-type()': {
backgroundColor: theme.palette.secondary.dark,

},
},
});






reactjs typescript






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 at 10:50









Gihan Saranga Siriwardhana

607420




607420










asked Nov 23 at 0:27









Richard Ng

11




11












  • This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
    – Baruch
    Nov 23 at 0:42










  • developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
    – Truong Dang
    Nov 23 at 0:56










  • I have tried the expression interpolation and get the same problem :/
    – Richard Ng
    Nov 23 at 1:28










  • Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
    – Kevin Bai
    Nov 23 at 2:25












  • I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
    – Richard Ng
    Nov 23 at 2:40


















  • This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
    – Baruch
    Nov 23 at 0:42










  • developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
    – Truong Dang
    Nov 23 at 0:56










  • I have tried the expression interpolation and get the same problem :/
    – Richard Ng
    Nov 23 at 1:28










  • Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
    – Kevin Bai
    Nov 23 at 2:25












  • I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
    – Richard Ng
    Nov 23 at 2:40
















This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
– Baruch
Nov 23 at 0:42




This isn't enough. Is there a way you can make a small repo? Or at least edit your question with which libraries are you using?
– Baruch
Nov 23 at 0:42












developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Truong Dang
Nov 23 at 0:56




developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Truong Dang
Nov 23 at 0:56












I have tried the expression interpolation and get the same problem :/
– Richard Ng
Nov 23 at 1:28




I have tried the expression interpolation and get the same problem :/
– Richard Ng
Nov 23 at 1:28












Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
– Kevin Bai
Nov 23 at 2:25






Have you tried using square brackets? var rowStyle = "&:nth-of-type(' + this.state.index + ')', then row: { [rowStyle]: { backgroundColor: "#FFFFFF" } }
– Kevin Bai
Nov 23 at 2:25














I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
– Richard Ng
Nov 23 at 2:40




I am unable to create the var inside the function scope, so i made the rowStyle a state instead with rowStyle:'&:nth-of-type(' + this.state.index + ') however, when i use it : [this.state.rowStyle] i get a type error 'this' implicitly has type 'any' because it has a type annotation
– Richard Ng
Nov 23 at 2:40












1 Answer
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const styleObj = {
root: {
height: 500,
width: "100%",
marginTop: theme.spacing.unit * 3,
overflowX: "auto"
},
table: {
minWidth: 700
},
row: {}
};

styleObj.row['&:nth-of-type(' + this.state.index + ')'] = {
backgroundColor: theme.palette.secondary.dark
};

const styles = (theme: Theme) => createStyles(styleObj);





share|improve this answer





















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    1 Answer
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    const styleObj = {
    root: {
    height: 500,
    width: "100%",
    marginTop: theme.spacing.unit * 3,
    overflowX: "auto"
    },
    table: {
    minWidth: 700
    },
    row: {}
    };

    styleObj.row['&:nth-of-type(' + this.state.index + ')'] = {
    backgroundColor: theme.palette.secondary.dark
    };

    const styles = (theme: Theme) => createStyles(styleObj);





    share|improve this answer


























      0














      const styleObj = {
      root: {
      height: 500,
      width: "100%",
      marginTop: theme.spacing.unit * 3,
      overflowX: "auto"
      },
      table: {
      minWidth: 700
      },
      row: {}
      };

      styleObj.row['&:nth-of-type(' + this.state.index + ')'] = {
      backgroundColor: theme.palette.secondary.dark
      };

      const styles = (theme: Theme) => createStyles(styleObj);





      share|improve this answer
























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        const styleObj = {
        root: {
        height: 500,
        width: "100%",
        marginTop: theme.spacing.unit * 3,
        overflowX: "auto"
        },
        table: {
        minWidth: 700
        },
        row: {}
        };

        styleObj.row['&:nth-of-type(' + this.state.index + ')'] = {
        backgroundColor: theme.palette.secondary.dark
        };

        const styles = (theme: Theme) => createStyles(styleObj);





        share|improve this answer












        const styleObj = {
        root: {
        height: 500,
        width: "100%",
        marginTop: theme.spacing.unit * 3,
        overflowX: "auto"
        },
        table: {
        minWidth: 700
        },
        row: {}
        };

        styleObj.row['&:nth-of-type(' + this.state.index + ')'] = {
        backgroundColor: theme.palette.secondary.dark
        };

        const styles = (theme: Theme) => createStyles(styleObj);






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 23 at 10:16









        Boris Traljić

        45439




        45439






























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