underscore.js

[Solved] Underscore filter array of object using like query

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Try this function getResult(keyToFilter, valueStartsWith){ return _.filter(results, function(d){ return d[keyToFilter].startsWith(valueStartsWith); }) } getResult(“name”, “asdfui”); [{ “id”: “203”, “name”: “asdfui uiuu” }, { “id”: “205”, “name”: “asdfui uyu” }] 0 solved Underscore filter array of object using like query

[Solved] How to compare each object in an array with each other. When found update the object with a new property

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You can use newCollection or manipulate in the collection like this collection.forEach((item)=>{ item.rowMatch = (collection.filter((e)=>{return (e.name==item.name&&e.phone==item.phone)}).length>1)?’true’:’false’; }) console.log(collection) Simple is that.Here is working JSFiddle for it https://jsfiddle.net/touqeer/pgdsw9Le/1/ . 11 solved How to compare each object in an array with each other. When found update the object with a new property

[Solved] How do you merge two javascript objects [duplicate]

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There are quite a few npm packages out there to accomplish this, but one that is very popular is lodash.merge. Take a look at the lodash merge function: https://lodash.com/docs/4.17.4#merge This method is like _.assign except that it recursively merges own and inherited enumerable string keyed properties of source objects into the destination object. Source properties … Read more

[Solved] How to improve this function to test Underscore Sample `_.sample()`

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Due to the complaints that this question was not very direct I created other posts to get the answers I was looking for. This answers the main questions I had. Answers: Understanding how array.prototype.call() works explains the output of this pattern. A full detailed answer can be found here: Mapping Array in Javascript with sequential … Read more

[Solved] Return matching elements after comparing in lower case?

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You could filter the value after a check, if the lower case value is included in the fields array. var mainArray = [“Title”, “AssignedTo”, “IssueStatus”, “Priority”, “Comment”, “Category”, “RelatedIssues”, “V3Comments”, “TaskDueDate”, “Attachments”], fields = [“title”, “comment”], result = mainArray.filter(a => fields.includes(a.toLowerCase())); console.log(result); ES5 var mainArray = [“Title”, “AssignedTo”, “IssueStatus”, “Priority”, “Comment”, “Category”, “RelatedIssues”, “V3Comments”, “TaskDueDate”, … Read more