call

Submit form on pressing Enter with AngularJS

由 ◇◆丶佛笑我妖孽 提交于 2019-11-26 02:26:47
问题 In this particular case, what options do I have to make these inputs call a function when I press Enter? // HTML view // <form> <input type=\"text\" ng-model=\"name\" <!-- Press ENTER and call myFunc --> /> <br /> <input type=\"text\" ng-model=\"email\" <!-- Press ENTER and call myFunc --> /> </form> // Controller // .controller(\'mycontroller\', [\'$scope\',function($scope) { $scope.name = \'\'; $scope.email = \'\'; // Function to be called when pressing ENTER $scope.myFunc = function() {

How to wait all batch files to finish before exiting?

由 ＊爱你＆永不变心＊ 提交于 2019-11-26 02:19:56
I have a main batch file than calls 4 other batch files so we can run in parallel. Example: Main.bat start call batch1.bat start call batch2.bat start call batch3.bat start call batch4.bat exit I want the Main.bat to exit after all the batch1 to batch 4 has stopped executing. In this way, I can get the total run time of the batch file. Problem is Main.bat exits even before batch1 to batch4 finishes executing. I tried to compute for %errorlevel% for each batch file, but it always return 0 even though the 4 .bat files are still running. Hoping someone could help me! Thank you! :) I think this is

What does it mean to “call” a function in Python? [closed]

由 此生再无相见时 提交于 2019-11-26 01:54:24
问题 What does \"call\" mean and do? How would you \"call\" a function in Python? 回答1: When you "call" a function you are basically just telling the program to execute that function. So if you had a function that added two numbers such as: def add(a,b): return a + b you would call the function like this: add(3,5) which would return 8. You can put any two numbers in the parentheses in this case. You can also call a function like this: answer = add(4,7) Which would set the variable answer equal to

How to wait all batch files to finish before exiting?

由 老子叫甜甜 提交于 2019-11-26 01:48:01
问题 I have a main batch file than calls 4 other batch files so we can run in parallel. Example: Main.bat start call batch1.bat start call batch2.bat start call batch3.bat start call batch4.bat exit I want the Main.bat to exit after all the batch1 to batch 4 has stopped executing. In this way, I can get the total run time of the batch file. Problem is Main.bat exits even before batch1 to batch4 finishes executing. I tried to compute for %errorlevel% for each batch file, but it always return 0 even

What is the difference between a function call and function reference?

由 这一生的挚爱 提交于 2019-11-26 00:47:40
问题 I have the following function function hello() { alert(\"hi!\"); } Take this piece of code: var elem = document.getElementById(\"btn\"); elem.onclick = hello; My question might be a bit hard to understand, so bear with me: What EXACTLY differentiates THIS piece of code from a normal call, or what makes this piece of code require a reference to the function variable rather than a regular call? ( hello(); ) How can I know where I\'m supposed to give a reference to the function, and when I\'m

Getting output of system() calls in Ruby

由 浪子不回头ぞ 提交于 2019-11-25 23:36:01
问题 If I call a command using Kernel#system in Ruby, how do I get its output? system(\"ls\") 回答1: I'd like to expand & clarify chaos's answer a bit. If you surround your command with backticks, then you don't need to (explicitly) call system() at all. The backticks execute the command and return the output as a string. You can then assign the value to a variable like so: output = `ls` p output or printf output # escapes newline chars 回答2: Be aware that all the solutions where you pass a string

Passing an array as a function parameter in JavaScript

由 南楼画角 提交于 2019-11-25 23:33:52
问题 I\'d like to call a function using an array as parameters: const x = [\'p0\', \'p1\', \'p2\']; call_me(x[0], x[1], x[2]); // I don\'t like it function call_me (param0, param1, param2 ) { // ... } Is there a better way of passing the contents of x into call_me() ? 回答1: const args = ['p0', 'p1', 'p2']; call_me.apply(this, args); See MDN docs for Function.prototype.apply(). If the environment supports ECMAScript 6, you can use a spread argument instead: call_me(...args); 回答2: Why don't you pass

Python call function within class

由 こ雲淡風輕ζ 提交于 2019-11-25 22:35:30
问题 I have this code which calculates the distance between two coordinates. The two functions are both within the same class. However how do I call the function distToPoint in the function isNear ? class Coordinates: def distToPoint(self, p): \"\"\" Use pythagoras to find distance (a^2 = b^2 + c^2) \"\"\" ... def isNear(self, p): distToPoint(self, p) ... 回答1: Since these are member functions, call it as a member function on the instance, self . def isNear(self, p): self.distToPoint(p) ... 回答2:

When is the finalize() method called in Java?

由 五迷三道 提交于 2019-11-25 22:18:58
问题 I need to know when the finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing? 回答1: In general it's best not to rely on finalize() to do any cleaning up etc. According to the Javadoc (which it would be worth reading), it is: Called by the garbage collector on an object when garbage collection determines that there are no more
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