Vue string matching in handlebars myString !== “” ? myString : otherString

up vote
1
down vote

favorite

myString !== "" ? myString : otherString is currently printing myString which is an empty string

What is wrong with my comparator? I also tried using single quotes

The reason I ask this seemingly basic question is because the Vue documentation on handlebars doesn't seem to cover this, aside from letting me know that general javascript is available, I thought this comparator was general javascript for strings

asked Nov 10 at 22:57

CQM

14.1k60191330

i tried your example by setting myString:"" and otherString:"test" and i set myString !== "" ? myString : otherString in my template which prints test, i think you have an issue somewhere else
– Boussadjra Brahim
Nov 10 at 23:05

1

Does myString.trim() !== "" perhaps have an effect on the output? Can myString be null or undefined instead of ""?
– Jonathan Lonowski
Nov 10 at 23:10

@JonathanLonowski yes it can. The model says myString should be a string but the mongodb object may not have that key, currently
– CQM
Nov 11 at 2:23

@JonathanLonowski the answer was just using if(value) so therefore myString ? ... : ...
– CQM
Nov 11 at 5:12

add a comment |

up vote
1
down vote

favorite

myString !== "" ? myString : otherString is currently printing myString which is an empty string

What is wrong with my comparator? I also tried using single quotes

asked Nov 10 at 22:57

CQM

14.1k60191330

i tried your example by setting myString:"" and otherString:"test" and i set myString !== "" ? myString : otherString in my template which prints test, i think you have an issue somewhere else
– Boussadjra Brahim
Nov 10 at 23:05

1

Does myString.trim() !== "" perhaps have an effect on the output? Can myString be null or undefined instead of ""?
– Jonathan Lonowski
Nov 10 at 23:10

@JonathanLonowski yes it can. The model says myString should be a string but the mongodb object may not have that key, currently
– CQM
Nov 11 at 2:23

@JonathanLonowski the answer was just using if(value) so therefore myString ? ... : ...
– CQM
Nov 11 at 5:12

add a comment |

up vote
1
down vote

favorite

myString !== "" ? myString : otherString is currently printing myString which is an empty string

What is wrong with my comparator? I also tried using single quotes

asked Nov 10 at 22:57

CQM

14.1k60191330

myString !== "" ? myString : otherString is currently printing myString which is an empty string

What is wrong with my comparator? I also tried using single quotes

javascript string vue.js comparator

asked Nov 10 at 22:57

CQM

14.1k60191330

asked Nov 10 at 22:57

CQM

14.1k60191330

asked Nov 10 at 22:57

CQM

14.1k60191330

asked Nov 10 at 22:57

CQM

14.1k60191330

asked Nov 10 at 22:57

CQM

14.1k60191330

i tried your example by setting myString:"" and otherString:"test" and i set myString !== "" ? myString : otherString in my template which prints test, i think you have an issue somewhere else
– Boussadjra Brahim
Nov 10 at 23:05

1

Does myString.trim() !== "" perhaps have an effect on the output? Can myString be null or undefined instead of ""?
– Jonathan Lonowski
Nov 10 at 23:10

@JonathanLonowski yes it can. The model says myString should be a string but the mongodb object may not have that key, currently
– CQM
Nov 11 at 2:23

@JonathanLonowski the answer was just using if(value) so therefore myString ? ... : ...
– CQM
Nov 11 at 5:12

add a comment |

i tried your example by setting myString:"" and otherString:"test" and i set myString !== "" ? myString : otherString in my template which prints test, i think you have an issue somewhere else
– Boussadjra Brahim
Nov 10 at 23:05

1

Does myString.trim() !== "" perhaps have an effect on the output? Can myString be null or undefined instead of ""?
– Jonathan Lonowski
Nov 10 at 23:10

@JonathanLonowski yes it can. The model says myString should be a string but the mongodb object may not have that key, currently
– CQM
Nov 11 at 2:23

@JonathanLonowski the answer was just using if(value) so therefore myString ? ... : ...
– CQM
Nov 11 at 5:12

i tried your example by setting myString:"" and otherString:"test" and i set myString !== "" ? myString : otherString in my template which prints test, i think you have an issue somewhere else
– Boussadjra Brahim
Nov 10 at 23:05

Does myString.trim() !== "" perhaps have an effect on the output? Can myString be null or undefined instead of ""?
– Jonathan Lonowski
Nov 10 at 23:10

@JonathanLonowski yes it can. The model says myString should be a string but the mongodb object may not have that key, currently
– CQM
Nov 11 at 2:23

@JonathanLonowski the answer was just using if(value) so therefore myString ? ... : ...
– CQM
Nov 11 at 5:12

add a comment |

2 Answers
2

active

oldest

votes

up vote
0
down vote

The ternary operator works fine on the template.
Check your myString data it might not be empty.

 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>

See the example below.

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

answered Nov 11 at 4:52

cal_br_mar

60137

add a comment |

up vote
0
down vote

accepted

if(value) was the answer here, to cover all the conditions I needed

so myString ? ... : ...

answered Nov 11 at 6:02

CQM

14.1k60191330

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

up vote
0
down vote

The ternary operator works fine on the template.
Check your myString data it might not be empty.

 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>

See the example below.

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

answered Nov 11 at 4:52

cal_br_mar

60137

add a comment |

up vote
0
down vote

The ternary operator works fine on the template.
Check your myString data it might not be empty.

 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>

See the example below.

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

answered Nov 11 at 4:52

cal_br_mar

60137

add a comment |

up vote
0
down vote

The ternary operator works fine on the template.
Check your myString data it might not be empty.

 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>

See the example below.

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

answered Nov 11 at 4:52

cal_br_mar

60137

The ternary operator works fine on the template.
Check your myString data it might not be empty.

 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>

See the example below.

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

var app = new Vue(
 el: '#app',
 data() 
 return 
 myString: "",
 otherString: "blah"
 
 ,
)

<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<div id="app">
 <div>Empty: myString === "" ? 'test' : otherString<div>
 <div>Non Empty: myString !== "" ? 'test' : otherString<div>
 
</div>

answered Nov 11 at 4:52

cal_br_mar

60137

answered Nov 11 at 4:52

cal_br_mar

60137

answered Nov 11 at 4:52

cal_br_mar

60137

answered Nov 11 at 4:52

cal_br_mar

60137

add a comment |

up vote
0
down vote

accepted

if(value) was the answer here, to cover all the conditions I needed

so myString ? ... : ...

answered Nov 11 at 6:02

CQM

14.1k60191330

add a comment |

up vote
0
down vote

accepted

if(value) was the answer here, to cover all the conditions I needed

so myString ? ... : ...

answered Nov 11 at 6:02

CQM

14.1k60191330

add a comment |

up vote
0
down vote

accepted

if(value) was the answer here, to cover all the conditions I needed

so myString ? ... : ...

answered Nov 11 at 6:02

CQM

14.1k60191330

if(value) was the answer here, to cover all the conditions I needed

so myString ? ... : ...

answered Nov 11 at 6:02

CQM

14.1k60191330

answered Nov 11 at 6:02

CQM

14.1k60191330

answered Nov 11 at 6:02

CQM

14.1k60191330

answered Nov 11 at 6:02

CQM

14.1k60191330

add a comment |

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