loops

问题 Using JSF 2.1 with primefaces class FOO{ String name; String value; public void setName(String name){ this.name=name; } public String getName(){ return this.name; } public void setValue(String value){ this.value=value; } public String getValue(){ return this.value; } } I have an Map<String, List<FOO>> Header name should be Key of the Map. I need to create multiple columns (i.e. size of Map) and each column should have the list of FOO to display FOO.Name in rows. For Example : if size of map

问题 Using JSF 2.1 with primefaces class FOO{ String name; String value; public void setName(String name){ this.name=name; } public String getName(){ return this.name; } public void setValue(String value){ this.value=value; } public String getValue(){ return this.value; } } I have an Map<String, List<FOO>> Header name should be Key of the Map. I need to create multiple columns (i.e. size of Map) and each column should have the list of FOO to display FOO.Name in rows. For Example : if size of map

问题 Supose that I have the following for loop, which would obviously block the event loop for a while: function doStuff() { let max = 100_000_000_000_000n; for (let i = 1n; i <= max; i = i + 1n) { if (i === max) { // Do stuff, like return a value to a function. return 'Some value.'; } } } Can I wrap that operation (the for loop) inside a Promise, so it does not block the "main thread"? Something like that: function doStuff() { let max = 100_000_000_000_000n; return new Promise((resolve) => { for

问题 I'm attempting to pass a function an array that should run through a loop and call a db.transaction for each incremented SQL statement. function updateColorData (colorArray) { for (var i=0; i<colorArray.length; i++) { var sql = 'INSERT INTO SPColorData (color) VALUES (\''+colorArray[i]+'\')'; if (i < colorArray.length-1) { db.transaction(function (tx) {tx.executeSql(sql, [], gameOptionSuccess, errorCB)}, errorCB); } else { db.transaction(function (tx) {tx.executeSql(sql, [], colorDataQuery,

问题 I'm attempting to pass a function an array that should run through a loop and call a db.transaction for each incremented SQL statement. function updateColorData (colorArray) { for (var i=0; i<colorArray.length; i++) { var sql = 'INSERT INTO SPColorData (color) VALUES (\''+colorArray[i]+'\')'; if (i < colorArray.length-1) { db.transaction(function (tx) {tx.executeSql(sql, [], gameOptionSuccess, errorCB)}, errorCB); } else { db.transaction(function (tx) {tx.executeSql(sql, [], colorDataQuery,

问题 I'm attempting to pass a function an array that should run through a loop and call a db.transaction for each incremented SQL statement. function updateColorData (colorArray) { for (var i=0; i<colorArray.length; i++) { var sql = 'INSERT INTO SPColorData (color) VALUES (\''+colorArray[i]+'\')'; if (i < colorArray.length-1) { db.transaction(function (tx) {tx.executeSql(sql, [], gameOptionSuccess, errorCB)}, errorCB); } else { db.transaction(function (tx) {tx.executeSql(sql, [], colorDataQuery,

问题 I am Python newbie, and just become very interested in Lambda expression. The problem I have is to find one and only one target element from a list of elements with lambda filter. In theory, when the target element is found there is no sense to continue anymore. With for loop it is pretty simple to break the loop, but what about by using lambda ? is it after all possible to do this? I search from Google, but did not find the expected solution 回答1: From https://docs.python.org/3/library

问题 I am Python newbie, and just become very interested in Lambda expression. The problem I have is to find one and only one target element from a list of elements with lambda filter. In theory, when the target element is found there is no sense to continue anymore. With for loop it is pretty simple to break the loop, but what about by using lambda ? is it after all possible to do this? I search from Google, but did not find the expected solution 回答1: From https://docs.python.org/3/library

问题 This question already has answers here : Add a property to a JavaScript object using a variable as the name? (13 answers) Closed 4 years ago . Assuming I've a JSON object like this: var myObj = { 'question1': { 'option1': 'foo', 'option2': 'bar', 'option3': 'baz' }, 'question2': { ... }, 'question3': { ... } }; And since its children always has a number in its keys, I want to do a loop and concatenate the loop's index to the object keys, and get the values in the dot notation method... So, I

问题 This question already has answers here : Add a property to a JavaScript object using a variable as the name? (13 answers) Closed 4 years ago . Assuming I've a JSON object like this: var myObj = { 'question1': { 'option1': 'foo', 'option2': 'bar', 'option3': 'baz' }, 'question2': { ... }, 'question3': { ... } }; And since its children always has a number in its keys, I want to do a loop and concatenate the loop's index to the object keys, and get the values in the dot notation method... So, I