Function copyValue

_benchmarks/sample_echarts.js:4894–4930

(target, source, key)

        return isArrayLike(value[0]);
    }
    function copyValue(target, source, key) {
        if (isArrayLike(source[key])) {
            if (!isArrayLike(target[key])) {
                target[key] = [];
            }
            if (isTypedArray(source[key])) {
                var len = source[key].length;
                if (target[key].length !== len) {
                    target[key] = new (source[key].constructor)(len);
                    copyArrShallow(target[key], source[key], len);
                }
            }
            else {
                var sourceArr = source[key];
                var targetArr = target[key];
                var len0 = sourceArr.length;
                if (is2DArray(sourceArr)) {
                    var len1 = sourceArr[0].length;
                    for (var i = 0; i < len0; i++) {
                        if (!targetArr[i]) {
                            targetArr[i] = Array.prototype.slice.call(sourceArr[i]);
                        }
                        else {
                            copyArrShallow(targetArr[i], sourceArr[i], len1);
                        }
                    }
                }
                else {
                    copyArrShallow(targetArr, sourceArr, len0);
                }
                targetArr.length = sourceArr.length;
            }
        }
        else {
            target[key] = source[key];
        }
    }
    function animateToShallow(animatable, topKey, source, target, cfg, animationProps, animators, reverse) {
        var animatableKeys = [];
        var changedKeys = [];