Baseline Widely available
The every() method of TypedArray instances tests whether all elements in the typed array pass the test implemented by the provided function. It returns a Boolean value. This method has the same algorithm as Array.prototype.every().
function isNegative(element, index, array) {
return element < 0;
}
const int8 = new Int8Array([-10, -20, -30, -40, -50]);
console.log(int8.every(isNegative));
// Expected output: true
every(callbackFn)
every(callbackFn, thisArg)
callbackFn
A function to execute for each element in the typed array. It should return a truthy value to indicate the element passes the test, and a falsy value otherwise. The function is called with the following arguments:
element
The current element being processed in the typed array.
index
The index of the current element being processed in the typed array.
array
The typed array every() was called upon.
thisArg Optional
A value to use as this when executing callbackFn. See iterative methods.
true unless callbackFn returns a falsy value for a typed array element, in which case false is immediately returned.
See Array.prototype.every() for more details. This method is not generic and can only be called on typed array instances.
The following example tests whether all elements in the typed array are 10 or bigger.
function isBigEnough(element, index, array) {
return element >= 10;
}
new Uint8Array([12, 5, 8, 130, 44]).every(isBigEnough); // false
new Uint8Array([12, 54, 18, 130, 44]).every(isBigEnough); // true
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