<script>exportdefault{name:'nf-form-input',model:{prop:'modelValue',event:'input'},props:{modelValue:String,meta:{type:Object,default:()=>{return{// 通用controlId:Number,// 编号,区别同一个表单里的其他控件colName:String,// 字段名称controlType:Number,// 用类型编号表示typeisClear:{// is...
<script type = 'text/javascript' > //code to check if a value exists in an array using javascript for loop var fruits_arr = ['Apple', 'Mango', 'Grapes', 'Orange', 'Fig', 'Cherry']; function checkValue(value, arr) { var status = 'Not exist'; for (var i = 0; i < arr....
Example: Check Prime Number // program to check if a number is prime or not // take input from the user const number = parseInt(prompt("Enter a positive number: ")); let isPrime = true; // check if number is equal to 1 if (number === 1) { console.log("1 is neither prime ...
I have written a code to check if the number is prime number are not. I pass the number from command line argument, and check if the number is prime. I have written a function for it which returns the boolean value. (function(){'use strict';main();functionmain(){vartestNum =getComm...
Vue check value is Integer: Vue.js is a progressive JavaScript framework used for building user interfaces. It provides a convenient way to check if a value is an integer by using the Number.isInteger() method. This method is a built-in JavaScript
In React.js, you can check if a value is an integer or a string using JavaScript's typeof operator. The typeof operator returns a string indicating the type of the operand. To check if a value is an integer, you can use the Number.isInteger() method, whi
Indeed, if you're just checking the boolean status, then I'd just use the comparative operator instead of using Math.sign. But where Math.sign shines is it returns a number value. This means you can do calculations.const number = 5; number > 0; // true Math.sign(number); // 1 ...
Now to check whether a given variable is a string or not, we'll use a JavaScript operator calledtypeof. Syntax: typeof variable; This operator returns the data type of the variable specified after it. If the variable is of string data type, it will return a string. ...
if (form.email.value == "") { alert( "Please enter your email address." ); form.email.focus(); return false ; } // ** END ** return true ; } //--> </script>You will need to replace the "email" in both the "name" attribute of the INPUT tag as well as the function ch...
For loopto iterate each element, check if an element is a Boolean value using theif statement. Arraysome()method, Performs iteration of elements and checks at least one element found or not ArrayindexOfmethod, This returns number (-1,0,1, etc) check index with ...