$. Grep (array, callback, [invert]) filtering, commonly used

 

$. Grep (array, callback, [invert]) filtering. Common Explanation: Filter Array elements using the filter function. this function must pass at least two parameters (the third parameter is true or false, and the return value of the filter function is reversed, which is of little use): the array to be filtered and the filter function. the filter function must return true to retain the element or false to delete the element.

VaR temp = []; temp = $. grep (ARR, function (Val, key) {If (Val. indexof ('C ')! =-1) return true; // if the [invert] parameter is not set or is false, $. grep only collects the array elements returned by the callback function. // otherwise, the [invert] parameter is true, $. the grep collection callback function returns an array element of false}, false); console. dir (temp );

 

$. Grep (array, callback, [invert]) filtering, commonly used