JavaScript Array some Method if (!Array.prototype.some) { Array.prototype.some = function(fun /*, thisp*/) { var len = this.length; if (typeof fun != "function") throw new TypeError(); var thisp = arguments[1]; for (var i = 0; i < len; i++) { if (i in this ...
The some() method checks if any of the elements in an array pass a test (provided as a function).The some() method executes the function once for each element present in the array:If it finds an array element where the function returns a true value, some() returns true (and does ...
The some() method checks if any array elements pass a test (provided as a callback function).The some() method executes the callback function once for each array element.The some() method returns true (and stops) if the function returns true for one of the array elements.The some() ...
operands of the in operator41//b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.42//This step can be combined with c43//c. If kPresent is true, then44if(kinO) {4546//i. Let kValue be the result of calling the Get internal method of...
JavaScript Array.fill() Method Using the fill() operation, we can replace certain elements with some static values. This method is an in-place method, meaning that it modifies the original array. It does not return a new array. Syntax: ...
filter, filter elements in order to satisfy some specific conditions. Thefilter()methodcreates a new arraywith all elements that pass the test implemented by the provided function. const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];...
some() 方法是一个迭代方法。它为数组中的每个元素调用一次指定的 callbackFn 函数,直到 callbackFn 返回一个真值。如果找到这样的元素,some() 方法将会立即返回 true 并停止遍历数组。否则,如果 callbackFn 对所有元素都返回假值,some() 就会返回 false。 some() 类似于数学中的“存在量词(∃)”。特别地,...
Theincludes()method is case sensitive. Syntax array.includes(element,start) Parameters ParameterDescription elementRequired. The value to search for. startOptional. Start position. Default is 0. Return Value TypeDescription A booleantrueif the value is found, otherwisefalse. ...
In this tutorial, you will learn about the JavaScript Array some() method with the help of examples. The some() method tests whether any of the array elements pass the given test function.
The some() method tests whether a condition holds for at least one element of an array. It loops through the elements of array, in ascending order, and invokes the specified predicate function on each element in turn. If predicate returns true (or a value that converts to true), then so...