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Array filter fliter in JS
2022-07-04 16:45:00 【Elephants and ants】
One requirement is to complete the screening function in the front end , Get all the data at once , Then filter according to the conditions . Usually, filtering is given to the interface in the background , In the case of a small amount of data , Some people may also encounter front-end filtering .
In general, single condition screening , Array of filter Methods can meet the needs , The focus of this paper is compound screening under multiple conditions , Several relevant knowledge points are listed .
filter() Create a new array , The elements in the new array are checked by checking all the eligible elements in the specified array .
array.filter(function(currentValue,index,arr), thisValue);
filter() Method is used to Array Filter out some elements in , Then return the remaining unfiltered elements .
filter() Empty arrays are not detected ;
filter() It doesn't change the original array .
Single condition single data filtering
Filter by single name , use filter Method , Judge name Whether it is the target name
// Filter by single name
function filterByName(aim, name<
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