Finding the maximum property under a value

I have a list of objects, each with its properties.
I am trying to find a specific object in this list with this .find although I can't figure out how to find the maximum value of one of it's properties under a certain value.

let x = this.state.pricing_adjustments_view.filter((e) => {

    return e.location_id === this.state.selectedLocation,

    e.car_model_id === this.state.selectedCar,

    moment(e.calendar_day).isSame(this.state.from, "day"),

    _.max(e.minimum_duration) <= duration

  })

Here it's the e.minimum_duration. I want to find the biggest value, but that is under "duration"
I am trying it with "lodash", here represented by the "_".
I am open to other possibilities.

this.state.pricing_adjustments_view is an array of objects, and you could say that for each object, the "UNIQUE" key is its "location_id", "car_model_id", "calendar_day" and "minimum_duration".

So there are several objects that are the same if we only consider "location_id", "car_model_id", "calendar_day", and then they have different "minimum_duration". I need to get the one that has the highest "minimum_duration".

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

1

Pls provide some example of input and expected output.

– Nitish Narang
Nov 23 '18 at 20:07

return with a check and comma operator? either some code is missing or it makes no sense.

– Nina Scholz
Nov 23 '18 at 20:07

@NinaScholz it's how i usually do it, .filter((e) => {return e.thing = thing, e.thing = thing}) and it works

– Valenti
Nov 23 '18 at 20:09

1

I'm not certain there is enough detail here for us to help you, consider reading up on Minimal, Complete, Verifieable Example

– D Lowther
Nov 23 '18 at 20:10

for example e.location_id === this.state.selectedLocation has nothing to do with the rest. it is not use in an if clause, nor as expression as return value or as part of a ternary.

– Nina Scholz
Nov 23 '18 at 20:11

|
show 4 more comments

let x = this.state.pricing_adjustments_view.filter((e) => {

    return e.location_id === this.state.selectedLocation,

    e.car_model_id === this.state.selectedCar,

    moment(e.calendar_day).isSame(this.state.from, "day"),

    _.max(e.minimum_duration) <= duration

  })

Here it's the e.minimum_duration. I want to find the biggest value, but that is under "duration"
I am trying it with "lodash", here represented by the "_".
I am open to other possibilities.

this.state.pricing_adjustments_view is an array of objects, and you could say that for each object, the "UNIQUE" key is its "location_id", "car_model_id", "calendar_day" and "minimum_duration".

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

1

Pls provide some example of input and expected output.

– Nitish Narang
Nov 23 '18 at 20:07

return with a check and comma operator? either some code is missing or it makes no sense.

– Nina Scholz
Nov 23 '18 at 20:07

@NinaScholz it's how i usually do it, .filter((e) => {return e.thing = thing, e.thing = thing}) and it works

– Valenti
Nov 23 '18 at 20:09

1

I'm not certain there is enough detail here for us to help you, consider reading up on Minimal, Complete, Verifieable Example

– D Lowther
Nov 23 '18 at 20:10

for example e.location_id === this.state.selectedLocation has nothing to do with the rest. it is not use in an if clause, nor as expression as return value or as part of a ternary.

– Nina Scholz
Nov 23 '18 at 20:11

|
show 4 more comments

let x = this.state.pricing_adjustments_view.filter((e) => {

    return e.location_id === this.state.selectedLocation,

    e.car_model_id === this.state.selectedCar,

    moment(e.calendar_day).isSame(this.state.from, "day"),

    _.max(e.minimum_duration) <= duration

  })

Here it's the e.minimum_duration. I want to find the biggest value, but that is under "duration"
I am trying it with "lodash", here represented by the "_".
I am open to other possibilities.

this.state.pricing_adjustments_view is an array of objects, and you could say that for each object, the "UNIQUE" key is its "location_id", "car_model_id", "calendar_day" and "minimum_duration".

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

let x = this.state.pricing_adjustments_view.filter((e) => {

    return e.location_id === this.state.selectedLocation,

    e.car_model_id === this.state.selectedCar,

    moment(e.calendar_day).isSame(this.state.from, "day"),

    _.max(e.minimum_duration) <= duration

  })

Here it's the e.minimum_duration. I want to find the biggest value, but that is under "duration"
I am trying it with "lodash", here represented by the "_".
I am open to other possibilities.

this.state.pricing_adjustments_view is an array of objects, and you could say that for each object, the "UNIQUE" key is its "location_id", "car_model_id", "calendar_day" and "minimum_duration".

javascript lodash

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

edited Nov 23 '18 at 20:16

asked Nov 23 '18 at 20:06

Valenti

asked Nov 23 '18 at 20:06

Valenti

asked Nov 23 '18 at 20:06

Valenti

1

Pls provide some example of input and expected output.

– Nitish Narang
Nov 23 '18 at 20:07

return with a check and comma operator? either some code is missing or it makes no sense.

– Nina Scholz
Nov 23 '18 at 20:07

@NinaScholz it's how i usually do it, .filter((e) => {return e.thing = thing, e.thing = thing}) and it works

– Valenti
Nov 23 '18 at 20:09

1

I'm not certain there is enough detail here for us to help you, consider reading up on Minimal, Complete, Verifieable Example

– D Lowther
Nov 23 '18 at 20:10

for example e.location_id === this.state.selectedLocation has nothing to do with the rest. it is not use in an if clause, nor as expression as return value or as part of a ternary.

– Nina Scholz
Nov 23 '18 at 20:11

|
show 4 more comments

1

Pls provide some example of input and expected output.

– Nitish Narang
Nov 23 '18 at 20:07

return with a check and comma operator? either some code is missing or it makes no sense.

– Nina Scholz
Nov 23 '18 at 20:07

@NinaScholz it's how i usually do it, .filter((e) => {return e.thing = thing, e.thing = thing}) and it works

– Valenti
Nov 23 '18 at 20:09

1

I'm not certain there is enough detail here for us to help you, consider reading up on Minimal, Complete, Verifieable Example

– D Lowther
Nov 23 '18 at 20:10

for example e.location_id === this.state.selectedLocation has nothing to do with the rest. it is not use in an if clause, nor as expression as return value or as part of a ternary.

– Nina Scholz
Nov 23 '18 at 20:11

Pls provide some example of input and expected output.

– Nitish Narang
Nov 23 '18 at 20:07

return with a check and comma operator? either some code is missing or it makes no sense.

– Nina Scholz
Nov 23 '18 at 20:07

@NinaScholz it's how i usually do it, .filter((e) => {return e.thing = thing, e.thing = thing}) and it works

– Valenti
Nov 23 '18 at 20:09

I'm not certain there is enough detail here for us to help you, consider reading up on Minimal, Complete, Verifieable Example

– D Lowther
Nov 23 '18 at 20:10

for example e.location_id === this.state.selectedLocation has nothing to do with the rest. it is not use in an if clause, nor as expression as return value or as part of a ternary.

– Nina Scholz
Nov 23 '18 at 20:11

|
show 4 more comments

1 Answer
1

active

oldest

votes

Ok,

You say it's the minimum_duration that interests you. In order to find the biggest (or smallest..) It's simple to just order pricing_adjustments_view by minimum_duration and take it's highest value.

So you can basically do following using lodash lib.

// sort dataa..

let sorted = _.sortBy(this.state.pricing_adjustments_view, 'minimum_duration');



// take last in list!

let has_highest_minimum_duration = sorted[sorted.length-1];

answered Jan 18 at 22:37

Silvan Bregy

60829

add a comment |

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1 Answer
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active

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votes

1 Answer
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active

oldest

votes

Ok,

So you can basically do following using lodash lib.

// sort dataa..

let sorted = _.sortBy(this.state.pricing_adjustments_view, 'minimum_duration');



// take last in list!

let has_highest_minimum_duration = sorted[sorted.length-1];

answered Jan 18 at 22:37

Silvan Bregy

60829

add a comment |

Ok,

So you can basically do following using lodash lib.

// sort dataa..

let sorted = _.sortBy(this.state.pricing_adjustments_view, 'minimum_duration');



// take last in list!

let has_highest_minimum_duration = sorted[sorted.length-1];

answered Jan 18 at 22:37

Silvan Bregy

60829

add a comment |

Ok,

So you can basically do following using lodash lib.

// sort dataa..

let sorted = _.sortBy(this.state.pricing_adjustments_view, 'minimum_duration');



// take last in list!

let has_highest_minimum_duration = sorted[sorted.length-1];

answered Jan 18 at 22:37

Silvan Bregy

60829

Ok,

So you can basically do following using lodash lib.

// sort dataa..

let sorted = _.sortBy(this.state.pricing_adjustments_view, 'minimum_duration');



// take last in list!

let has_highest_minimum_duration = sorted[sorted.length-1];

answered Jan 18 at 22:37

Silvan Bregy

60829

answered Jan 18 at 22:37

Silvan Bregy

60829

answered Jan 18 at 22:37

Silvan Bregy

60829

answered Jan 18 at 22:37

Silvan Bregy

60829

add a comment |

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