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Javascript Articles
Page 356 of 534
How to delete all the DB2 packages in collection COLL1?
A DB2 collection is a physical quantity which is used to group the packages. A collection can be simply termed as a group of DB2 packages. By using collections we can bind the same DBRM into different packages. In order to delete all the DB2 packers under a collection, we can issue below command.FREE PACKAGE(COLL1.*)The FREE PACKAGE reserved word is followed by the name of collection i.e. COLL1. The * after the collection name indicates that we need to perform delete action for all the packages under the said collection.
Read MoreFrom a list of IDs with empty and non-empty values, retrieve specific ID records in JavaScript
Let’s say the following is our list −var details=[ {id:101, name:"John", age:21}, {id:111, name:"David", age:24}, {id:1, name:"Mike", age:22}, {id:"", name:"Sam", age:20}, {id: 1, name:"Carol", age:23}, {id:null, name:"Robert", age:25}, {id:1, name:"Adam", age:24}, {id:"", name:"Chris", age:23} ];You can use the concept of filter to retrieve values based on specific ID.Examplevar details=[ {id:101, name:"John", age:21}, {id:111, name:"David", age:24}, {id:1, name:"Mike", age:22}, {id:"", name:"Sam", age:20}, {id: 1, name:"Carol", age:23}, {id:null, name:"Robert", age:25}, {id:1, name:"Adam", age:24}, {id:"", name:"Chris", age:23} ]; var getIdWithValue1 = details.filter(obj => obj.id === 1); console.log(getIdWithValue1);To ...
Read MoreConvert a list of string coords into two float lists of Lat/Longitude coordinates in JavaScript?
Let’s say the following are our coordinates −var listOfStrings = ["10.45322, -6.8766363", "78.93664664, -9.74646646", "7888.7664664, -10.64664632"];To convert the above into two float lists of Latitude and Longitude, use split() on the basis of comma(, ) along with map().Examplevar listOfStrings = ["10.45322, -6.8766363", "78.93664664, -9.74646646", "7888.7664664, -10.64664632"]; var latitude = []; var longitude = []; listOfStrings.forEach(obj => obj.split(', ') .map(Number) .forEach((value, index) => [latitude, longitude][index].push(value)) ); console.log("All positive value is latitude=") console.log(latitude); console.log("All negative value is longitude=") console.log(longitude);To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo180.js.OutputThis will produce the following output ...
Read MoreFetch values by ignoring a specific one in JavaScript?
To ignore a specific value, use the logical Not (!) operator in if condition and fetch watching you want to include.Examplevar customerDetails=[ { customerName:"John", customerAge:28, customerCountryName:"US" }, { customerName:"David", customerAge:25, customerCountryName:"AUS" }, { customerName:"Mike", customerAge:32, customerCountryName:"UK" } ] for(var i=0;i node demo179.js The country name is=US The country name is=UK
Read MoreGet only specific values in an array of objects in JavaScript?
Let’s say the following is our array of objects −var details = [{ studentName: "John", studentMarks: 92 }, { studentName: "David", studentMarks: 89 }, { studentName: "Mike", studentMarks: 98 }, ];To get only specific values in an array of objects in JavaScript, use the concept of filter().Examplevar details = [{ studentName: "John", studentMarks: 92 }, { studentName: "David", studentMarks: 89 }, { studentName: "Mike", studentMarks: 98 }, ]; var specificValuesFromArray = details.filter(obj => obj.studentMarks === 92 || obj.studentMarks === 98); console.log(specificValuesFromArray)To run the above program, you need to ...
Read MoreHow to add a new object into a JavaScript array after map and check condition?
For this, you can use filter() along with map().Exampleconst details =[ { customerName: 'John', customerCountryName: 'UK', isMarried :true }, { customerName: 'David', customerCountryName: 'AUS', isMarried :false }, { customerName: 'Mike', customerCountryName: 'US', isMarried :false } ] let tempObject = details.filter(obj=> obj.isMarried == true); tempObject["customerNameWithIsMarriedFalse"] = details.filter(obj => obj.isMarried== false).map(obj => obj.customerName); console.log(tempObject);To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo176.js.OutputThis will produce the following output −PS C:\Users\Amit\javascript-code> node demo176.js [ { customerName: 'John', customerCountryName: 'UK', isMarried: true }, customerNameWithIsMarriedFalse: [ 'David', 'Mike' ] ]
Read MoreHow to create an increment of 10 value once you click a button in JavaScript?
For this, use click() along with parseInt().Example Live Demo Document 10 addValue10EachTimePressMe addValue = 0; $("#addSequenceOf10").click(function() { var actualValue = parseInt($("#add").html()); addValue =addValue+ actualValue; $("#sequenceValue").html(addValue); }); To run the above program, just save the file name anyName.html(index.html) and right click on the file and select the option open with live server in VS Code editor.OutputThis will produce the following output −Now, press the button you will get 10 then 20 30 40…….N; as in the below output −After clicking one more time, the snapshot is as follows.This will produce the following output −
Read MoreIterating and printing a JSON with no initial key and multiple entries?
For iterating and printing, use forEach() loop in JavaScript.Exampleconst details =[ { "studentId":101, "studentName": "John Doe", }, { "studentId":102, "studentName": "David Miller", }, ]; details.forEach(obj=>{ console.log("StudentId="+obj.studentId); console.log("StudentName="+obj.studentName); })To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo174.js.OutputThis will produce the following output −PS C:\Users\Amit\javascript-code> node demo174.js StudentId=101 StudentName=John Doe StudentId=102 StudentName=David Miller
Read MoreIs having the first JavaScript parameter with default value possible?
You can use destructed array in this case.Examplefunction multiply(firstParameterDefaultValue=10, secondParameterValue) { return firstParameterDefaultValue * secondParameterValue; } console.log("The result="+multiply(...[,10]));To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo173.js.OutputThis will produce the following output −PS C:\Users\Amit\javascript-code> node demo173.js The result=100
Read MoreSet a default value for the argument to cover undefined errors while calling a function in JavaScript
If you won’t pass value to a function(), it will print the default value otherwise given parameter will be printed.Following is the code. We are setting a default here i.e. “Jack” in this case to avoid any undefined error when a function is called without any parameter −Examplefunction display({ name = 'Jack' } = {}) { console.log(`Hi My Name is ${name}!`); } display(); display({name:"Taylor Swift"});To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo171.js.OutputThis will produce the following output −PS C:\Users\Amit\javascript-code> node demo171.js Hi My Name is Jack! Hi My ...
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