javascript indexOf object value in array
// Get index of object with specific value in array const needle = 3; // needle const haystack = [{ id: 1 }, { id: 2 }, { id: 3 }]; // haystack const index = haystack.findIndex(item => item.id === needle);
javascript indexOf object value in array
// Get index of object with specific value in array const needle = 3; // needle const haystack = [{ id: 1 }, { id: 2 }, { id: 3 }]; // haystack const index = haystack.findIndex(item => item.id === needle);
using index of on array of objects
arr = [{x: "a", y: 1}, {x: "something", y: 2}] arr.findIndex(obj => obj.x === "a" && obj.y === 1);
javascript indexof
//indexOf getting index of array element, returns -1 if not found var colors=["red","green","blue"]; var pos=colors.indexOf("blue");//2 //indexOf getting index of sub string, returns -1 if not found var str = "We got a poop cleanup on isle 4."; var strPos = str.indexOf("poop");//9
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